{"id":273525,"date":"2026-09-23T03:01:52","date_gmt":"2026-09-23T08:01:52","guid":{"rendered":"https:\/\/langcom.org\/?p=273525"},"modified":"2026-09-23T03:01:52","modified_gmt":"2026-09-23T08:01:52","slug":"have-to-obligations-a1-a1","status":"publish","type":"post","link":"https:\/\/langcom.org\/ja\/blog\/have-to-obligations-a1-a1\/","title":{"rendered":"A1 English Grammar: Learn How to Use &#8216;Have to&#8217; for Obligations"},"content":{"rendered":"<div class=\"lc-answer\"><strong>\u5f53\u793e\u3067\u306f <span data-no-translation>have to<\/span> to talk about rules, obligations, or things that are necessary.<\/strong> It means something is required, like a chore, a school rule, or a work task. You cannot choose not to do it. For example, <span data-no-translation>I have to go to school<\/span> means school is mandatory for you. We use <span data-no-translation>have to<\/span> for most subjects (<span data-no-translation>I, you, we, they<\/span>) \u304a\u3088\u3073 <span data-no-translation>has to<\/span> for third person singular (<span data-no-translation>he, she, it<\/span>). To make negative sentences, we use <span data-no-translation>don&#8217;t have to<\/span> \u307e\u305f\u306f <span data-no-translation>doesn&#8217;t have to<\/span>, which means something is not necessary or not an obligation. For questions, we use <span data-no-translation>Do you have to&#8230;?<\/span> \u307e\u305f\u306f <span data-no-translation>Does he have to&#8230;?<\/span>.<\/div>\n<h2>What Does <span data-no-translation>Have to<\/span> Mean?<\/h2>\n<p>In English, we use <span data-no-translation>have to<\/span> when we talk about things that are necessary or obligatory. It means you must do something because of a rule, a law, or a situation.<\/p>\n<p>Think of it as a responsibility or a task you cannot avoid.<\/p>\n<ul>\n<li>It shows an external obligation. Someone or something (like a rule) makes you do it.<\/li>\n<li>It is very common for daily routines, chores, and work or school duties.<\/li>\n<\/ul>\n<div class=\"lc-cta lc-cta-blended\" style=\"border-radius:14px;padding:30px;margin:30px 0;text-align:center;color:#fff;background:linear-gradient(135deg,#0E63C4,#0A2540);\"><h3 style=\"color:#fff;font-size:22px;font-weight:800;margin:0 0 8px;\">\ud83c\udf93 \u30d6\u30ec\u30f3\u30c7\u30c3\u30c9\u5b66\u7fd2\u6cd5\u3067\u82f1\u8a9e\u3092\u5b66\u307c\u3046<\/h3><p style=\"margin:0 0 10px;opacity:.95;\">\u5c11\u4eba\u6570\u5236\u30fb24\u6642\u9593365\u65e5\u5bfe\u5fdc\u306eAI\u30c1\u30e5\u30fc\u30bf\u30fc\u30fb\u30b1\u30f3\u30d6\u30ea\u30c3\u30b8\u8a66\u9a13\u5bfe\u7b56<\/p><p style=\"margin:0 0 16px;font-size:18px;\">\u4ee5\u4e0b\u306e\u30d7\u30e9\u30f3\u304b\u3089 <strong><span class=\"woocommerce-Price-amount amount\"><bdi><span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">$<\/span>39<\/bdi><\/span><\/strong> <s style=\"opacity:.6;\"><span class=\"woocommerce-Price-amount amount\"><bdi><span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">$<\/span>79<\/bdi><\/span><\/s> \u6708\u984d<\/p><a href=\"\/ja\/\" style=\"display:inline-block;margin-top:8px;padding:13px 30px;border-radius:8px;font-weight:700;text-decoration:none;background:#fff;color:#0E63C4;\">\u30af\u30e9\u30b9\u306e\u4e88\u7d04\u3092\u3059\u308b<\/a><\/div>\n<h2>How Do We Form Sentences with <span data-no-translation>Have to<\/span>?<\/h2>\n<p>The form of <span data-no-translation>have to<\/span> changes a little depending on the subject.<\/p>\n<ul>\n<li>\uff5e\u306b\u3064\u3044\u3066 <span data-no-translation>I, You, We, They<\/span>, we use <span data-no-translation>have to<\/span>.<\/li>\n<li>\uff5e\u306b\u3064\u3044\u3066 <span data-no-translation>He, She, It<\/span>, we use <span data-no-translation>has to<\/span>.<\/li>\n<\/ul>\n<p>After <span data-no-translation>have to<\/span> \u307e\u305f\u306f <span data-no-translation>has to<\/span>, we always use the base form of the verb (the infinitive without 'to').<\/p>\n<h2>How Do We Make Negative Sentences with <span data-no-translation>Have to<\/span>?<\/h2>\n<p>To say that something is NOT necessary or NOT an obligation, we use <span data-no-translation>don't have to<\/span> \u307e\u305f\u306f <span data-no-translation>doesn't have to<\/span>.<\/p>\n<ul>\n<li>\uff5e\u306b\u3064\u3044\u3066 <span data-no-translation>I, You, We, They<\/span>, we use <span data-no-translation>don't have to<\/span>.<\/li>\n<li>\uff5e\u306b\u3064\u3044\u3066 <span data-no-translation>He, She, It<\/span>, we use <span data-no-translation>doesn't have to<\/span>.<\/li>\n<\/ul>\n<p>This means you have a choice; it's not compulsory.<\/p>\n<h2>How Do We Ask Questions with <span data-no-translation>Have to<\/span>?<\/h2>\n<p>To ask about obligations, we use <span data-no-translation>Do<\/span> \u307e\u305f\u306f <span data-no-translation>Does<\/span> at the beginning of the question.<\/p>\n<ul>\n<li>\uff5e\u306b\u3064\u3044\u3066 <span data-no-translation>I, You, We, They<\/span>, we use <span data-no-translation>Do... have to...?<\/span><\/li>\n<li>\uff5e\u306b\u3064\u3044\u3066 <span data-no-translation>He, She, It<\/span>, we use <span data-no-translation>Does... have to...?<\/span> (Remember, for <span data-no-translation>he\/she\/it<\/span> in questions, we use <span data-no-translation>have to<\/span>, \u3067\u306f\u306a\u304f <span data-no-translation>has to<\/span>, because <span data-no-translation>does<\/span> already shows the third person singular.)<\/li>\n<\/ul>\n<table>\n<caption>Conjugation of &lt;span data-no-translation&gt;Have to&lt;\/span&gt; (Present Simple)<\/caption>\n<thead>\n<tr>\n<th>Subject<\/th>\n<th>\u967d\u6027\uff08+\uff09<\/th>\n<th>\u30de\u30a4\u30ca\u30b9\uff08-\uff09<\/th>\n<th>\u8cea\u554f\uff08\uff1f\uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-no-translation>I \/ You \/ We \/ They<\/span><\/td>\n<td><span data-no-translation>have to + verb<\/span><\/td>\n<td><span data-no-translation>don't have to + verb<\/span><\/td>\n<td><span data-no-translation>Do ... have to + verb?<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-no-translation>He \/ She \/ It<\/span><\/td>\n<td><span data-no-translation>has to + verb<\/span><\/td>\n<td><span data-no-translation>doesn't have to + verb<\/span><\/td>\n<td><span data-no-translation>Does ... have to + verb?<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u4f8b<\/h2>\n<ul>\n<li><span data-no-translation>I have to wash the dishes every day.<\/span><\/li>\n<li><span data-no-translation>My dad has to go to work at 7 o'clock.<\/span><\/li>\n<li><span data-no-translation>My friends have to do their homework in the afternoon.<\/span><\/li>\n<li><span data-no-translation>You don't have to cook tonight. We can order pizza!<\/span><\/li>\n<li><span data-no-translation>She doesn't have to wake up early on Saturdays.<\/span><\/li>\n<li><span data-no-translation>Do you have to wear a uniform at school?<\/span><\/li>\n<li><span data-no-translation>Does he have to finish the report today?<\/span><\/li>\n<\/ul>\n<h2>\u7df4\u7fd2<\/h2>\n<div class=\"h5p-iframe-wrapper\"><iframe id=\"h5p-iframe-2208\" class=\"h5p-iframe\" data-content-id=\"2208\" style=\"height:1px\" src=\"about:blank\" frameborder=\"0\" scrolling=\"no\" title=\"PT03 L5 GRAMMAR have to\"><\/iframe><\/div>\n<div class=\"lc-cta lc-cta-whatsapp\" style=\"border-radius:14px;padding:30px;margin:30px 0;text-align:center;color:#fff;background:linear-gradient(135deg,#3DB16A,#1f8a4c);\"><h3 style=\"color:#fff;font-size:22px;font-weight:800;margin:0 0 8px;\">\ud83d\udcac \u500b\u5225\u306e\u30a2\u30c9\u30d0\u30a4\u30b9\u304c\u5fc5\u8981\u3067\u3059\u304b\uff1f<\/h3><p style=\"margin:0 0 16px;opacity:.95;\">\u5f53\u6821\u306f\u30b1\u30f3\u30d6\u30ea\u30c3\u30b8\u8a66\u9a13\u306e\u516c\u8a8d\u6e96\u5099\u30bb\u30f3\u30bf\u30fc\u3068\u3057\u3066\u3001\u7686\u69d8\u306b\u6700\u9069\u306a\u30b3\u30fc\u30b9\u3084\u8cc7\u683c\u53d6\u5f97\u3078\u306e\u9053\u3092\u3054\u6848\u5185\u3044\u305f\u3057\u307e\u3059\u3002\u305c\u3072\u4eca\u3059\u3050\u30a2\u30c9\u30d0\u30a4\u30b6\u30fc\u306b\u3054\u76f8\u8ac7\u304f\u3060\u3055\u3044\u3002.<\/p><a href=\"https:\/\/wa.me\/51987070865?text=Hi%2C%20I%27m%20interested%20in%20Langcom%27s%20courses%20and%20would%20like%20some%20guidance%20choosing%20the%20right%20one.\" style=\"display:inline-block;margin-top:8px;padding:13px 30px;border-radius:8px;font-weight:700;text-decoration:none;background:#fff;color:#1f8a4c;\">WhatsApp\u3067\u30a2\u30c9\u30d0\u30a4\u30b6\u30fc\u3068\u30c1\u30e3\u30c3\u30c8<\/a><\/div>\n<h2>\u30b9\u30da\u30a4\u30f3\u8a9e\u8a71\u8005\u304c\u3088\u304f\u72af\u3059\u9593\u9055\u3044<\/h2>\n<h3>Common Mistakes with <span data-no-translation>Have to<\/span><\/h3>\n<p>\u30b9\u30da\u30a4\u30f3\u8a9e\u3092\u8a71\u3059\u4eba\u305f\u3061\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u9593\u9055\u3044\u3092\u72af\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u65b9\u6cd5 <span data-no-translation>must to<\/span> \uff5e\u306e\u4ee3\u308f\u308a\u306b <span data-no-translation>have to<\/span>:<\/strong> In English, we say <span data-no-translation>I have to go<\/span>, \u3067\u306f\u306a\u304f <span data-no-translation>I must to go<\/span>. Remember, <span data-no-translation>have to<\/span> acts like a regular verb for negatives and questions.<\/li>\n<li><strong>\u4f7f\u7528\u65b9\u6cd5 <span data-no-translation>have to<\/span> \uff5e\u306e\u305f\u3081\u306b <span data-no-translation>he\/she\/it<\/span>:<\/strong> It's common to forget the 's'. Always say <span data-no-translation>He has to<\/span>, \u3067\u306f\u306a\u304f <span data-no-translation>He have to<\/span>.<\/li>\n<li><strong>Forgetting <span data-no-translation>do\/does<\/span> in questions and negatives:<\/strong> We don't say <span data-no-translation>You not have to<\/span> \u307e\u305f\u306f <span data-no-translation>Have you to go?<\/span> Instead, use <span data-no-translation>You don't have to<\/span> \u305d\u3057\u3066 <span data-no-translation>Do you have to go?<\/span><\/li>\n<\/ul>\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<h3>\u306f <span data-no-translation>have to<\/span> a modal verb?<\/h3>\n<p>\u4e00\u65b9\u3067 <span data-no-translation>have to<\/span> expresses obligation like modal verbs (<span data-no-translation>must<\/span>), it behaves more like a regular verb. It needs <span data-no-translation>do\/does<\/span> for questions and negatives, unlike true modal verbs such as <span data-no-translation>can<\/span> \u307e\u305f\u306f <span data-no-translation>should<\/span>.<\/p>\n<h3>\u300c\uff5e\u3068\uff5e\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\u300d <span data-no-translation>have to<\/span> \u305d\u3057\u3066 <span data-no-translation>must<\/span>?<\/h3>\n<p>For A1 learners, the main difference is that <span data-no-translation>have to<\/span> usually shows an external obligation (a rule, a law, someone else's decision). <span data-no-translation>Must<\/span> often shows a strong personal feeling or an obligation from the speaker. For example, <span data-no-translation>I have to wear a uniform<\/span> (school rule) vs. <span data-no-translation>I must study for the exam<\/span> (my strong personal decision).<\/p>\n<h3>What is the past tense of <span data-no-translation>have to<\/span>?<\/h3>\n<p>The past tense of <span data-no-translation>have to<\/span> \u306f <span data-no-translation>had to<\/span> for all subjects. For example, <span data-no-translation>Yesterday, I had to work late.<\/span><\/p>\n<h3>Why do we say <span data-no-translation>has to<\/span> \uff5e\u306e\u305f\u3081\u306b <span data-no-translation>he\/she\/it<\/span>?<\/h3>\n<p>Just like with the verb <span data-no-translation>have<\/span>, we add an '-s' or change the form for the third person singular in the present simple. So, <span data-no-translation>he has<\/span> \uff5e\u306b\u306a\u308b <span data-no-translation>he has to<\/span>, following the same grammar rule.<\/p>\n<h2>\u95a2\u9023\u30ec\u30c3\u30b9\u30f3<\/h2>\n<ul>\n<li><a href=\"https:\/\/langcom.org\/ja\/?p=272776\">Modal verbs<\/a><\/li>\n<li><a href=\"https:\/\/langcom.org\/ja\/?p=273037\">Modal verbs<\/a><\/li>\n<li><a href=\"https:\/\/langcom.org\/ja\/?p=273133\">Modal verbs<\/a><\/li>\n<li><a href=\"https:\/\/langcom.org\/ja\/?p=273153\">Modal verbs<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>We use have to to talk about rules, obligations, or things that are necessary. It means something is required, like a chore, a school rule, or a work task. You cannot choose not to do it. For example, I have to go to school means school is mandatory for you. We use have to for most subjects (I, you, we, they) and has to for third person singular (he, she, it). To make negative sentences, we use don&#8217;t have to or doesn&#8217;t have to, which means something is not necessary or not an obligation. For questions, we use Do you have to&#8230;? or Does he have to&#8230;?. What Does Have [&hellip;]<\/p>\n","protected":false},"author":192,"featured_media":274726,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"bwfblock_default_font":"","langcom_teaches":"Modal verbs","langcom_cefr":"A1","langcom_type":"grammar","langcom_faq":"[{\"q\": \"Is <span data-no-translation>have to<\/span> a modal verb?\", \"a\": \"While <span data-no-translation>have to<\/span> expresses obligation like modal verbs (<span data-no-translation>must<\/span>), it behaves more like a regular verb. It needs <span data-no-translation>do\/does<\/span> for questions and negatives, unlike true modal verbs such as <span data-no-translation>can<\/span> or <span data-no-translation>should<\/span>.\"}, {\"q\": \"What is the difference between <span data-no-translation>have to<\/span> and <span data-no-translation>must<\/span>?\", \"a\": \"For A1 learners, the main difference is that <span data-no-translation>have to<\/span> usually shows an external obligation (a rule, a law, someone else's decision). <span data-no-translation>Must<\/span> often shows a strong personal feeling or an obligation from the speaker. For example, <span data-no-translation>I have to wear a uniform<\/span> (school rule) vs. <span data-no-translation>I must study for the exam<\/span> (my strong personal decision).\"}, {\"q\": \"What is the past tense of <span data-no-translation>have to<\/span>?\", \"a\": \"The past tense of <span data-no-translation>have to<\/span> is <span data-no-translation>had to<\/span> for all subjects. For example, <span data-no-translation>Yesterday, I had to work late.<\/span>\"}, {\"q\": \"Why do we say <span data-no-translation>has to<\/span> for <span data-no-translation>he\/she\/it<\/span>?\", \"a\": \"Just like with the verb <span data-no-translation>have<\/span>, we add an '-s' or change the form for the third person singular in the present simple. So, <span data-no-translation>he has<\/span> becomes <span data-no-translation>he has to<\/span>, following the same grammar rule.\"}]","_kiss_seo_title":"","_kiss_seo_excerpt":"We use have to to talk about rules, obligations, or things that are necessary. It means something is required, like a chore, a school rule, or a work task.","_mwseo_canonical":"","_mwseo_keywords":"","_mwseo_primary_category":0,"footnotes":""},"categories":[608],"tags":[651,981],"formats":[],"class_list":["post-273525","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-a1-beginner-english-for-kids","tag-grammar","tag-have-to"],"dsm_author":{"name":"\u30e9\u30a6\u30eb","avatar_url":"https:\/\/langcom.org\/wp-content\/uploads\/nsl_avatars\/1de86ea706740d324aaef3dd8bf0843b.png","archive_link":"https:\/\/langcom.org\/ja\/blog\/author\/raulmaguinahamann\/","biodata":""},"dsm_categories":[{"term_name":"A1 Beginner English for Kids","term_id":608,"term_link":"https:\/\/langcom.org\/ja\/blog\/category\/learn-english\/english-for-kids\/a1-beginner-english-for-kids\/"}],"dsm_attachment_categories":[],"dsm_featured_image":{"thumbnail":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom-150x150.webp","medium":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom-300x158.webp","medium_large":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom-768x403.webp","large":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom-1024x538.webp","1536x1536":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom.webp","2048x2048":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom.webp","trp-custom-language-flag":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom-18x9.webp","et-pb-post-main-image":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom-400x250.webp","et-pb-post-main-image-fullwidth":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom-1080x630.webp","et-pb-portfolio-image":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom-400x284.webp","et-pb-portfolio-module-image":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom-510x382.webp","et-pb-portfolio-image-single":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom-1080x567.webp","et-pb-gallery-module-image-portrait":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom-400x516.webp","et-pb-post-main-image-fullwidth-large":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom.webp","et-pb-image--responsive--desktop":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom.webp","et-pb-image--responsive--tablet":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom-980x515.webp","et-pb-image--responsive--phone":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom-480x252.webp","woocommerce_thumbnail":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom-300x300.webp","woocommerce_single":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom-600x315.webp","woocommerce_gallery_thumbnail":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom-100x100.webp","full":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/modal-verbs-a1-grammar-english-langcom.webp"},"dsm_comment_count":0,"_links":{"self":[{"href":"https:\/\/langcom.org\/ja\/wp-json\/wp\/v2\/posts\/273525","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/langcom.org\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/langcom.org\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/langcom.org\/ja\/wp-json\/wp\/v2\/users\/192"}],"replies":[{"embeddable":true,"href":"https:\/\/langcom.org\/ja\/wp-json\/wp\/v2\/comments?post=273525"}],"version-history":[{"count":0,"href":"https:\/\/langcom.org\/ja\/wp-json\/wp\/v2\/posts\/273525\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/langcom.org\/ja\/wp-json\/wp\/v2\/media\/274726"}],"wp:attachment":[{"href":"https:\/\/langcom.org\/ja\/wp-json\/wp\/v2\/media?parent=273525"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/langcom.org\/ja\/wp-json\/wp\/v2\/categories?post=273525"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/langcom.org\/ja\/wp-json\/wp\/v2\/tags?post=273525"},{"taxonomy":"post_format","embeddable":true,"href":"https:\/\/langcom.org\/ja\/wp-json\/wp\/v2\/formats?post=273525"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}