{"id":273474,"date":"2026-09-21T03:00:03","date_gmt":"2026-09-21T08:00:03","guid":{"rendered":"https:\/\/langcom.org\/?p=273474"},"modified":"2026-09-21T03:00:03","modified_gmt":"2026-09-21T08:00:03","slug":"phrases-with-on-b2-b2-first","status":"publish","type":"post","link":"https:\/\/langcom.org\/it\/blog\/phrases-with-on-b2-b2-first\/","title":{"rendered":"Master B2 Phrases with &#8216;On&#8217;: Boost Your English Vocabulary"},"content":{"rendered":"<div class=\"lc-answer\"><strong>Understanding fixed phrases with the preposition <span data-no-translation>on<\/span> is essential for B2 English learners to sound natural and precise.<\/strong> These phrases are common in everyday conversation and formal contexts, helping you express specific ideas clearly. For example, you might buy something <span data-no-translation>on offer<\/span> to save money, or do something <span data-no-translation>on purpose<\/span>, meaning intentionally. Knowing these expressions improves your vocabulary and comprehension, especially for exams like the B2 First. They often have meanings that are not obvious from the individual words, so learning them as complete units is key. Mastering these idiomatic uses of <span data-no-translation>on<\/span> will significantly enhance your fluency and accuracy, allowing you to communicate more effectively in a wide range of situations. Langcom helps you learn these vital phrases to boost your confidence.<\/div>\n<h2>Why Are Prepositional Phrases Important in English?<\/h2>\n<p>Prepositions like <span data-no-translation>on<\/span> are small words, but they are very powerful. They connect words and ideas in sentences.<\/p>\n<p>Sometimes, a preposition combines with a noun or adjective to form a fixed phrase. These phrases have a special meaning that you must learn as a whole.<\/p>\n<ul>\n<li>Learning these phrases helps you speak more naturally.<\/li>\n<li>They are common in both spoken and written English.<\/li>\n<li>Understanding them improves your listening and reading skills.<\/li>\n<\/ul>\n<div class=\"lc-cta lc-cta-placement\" style=\"border-radius:14px;padding:30px;margin:30px 0;text-align:center;color:#fff;background:linear-gradient(135deg,#2B87DA,#29C4A9);\"><h3 style=\"color:#fff;font-size:22px;font-weight:800;margin:0 0 8px;\">\u270d\ufe0f Non sai a quale livello ti trovi?<\/h3><p style=\"margin:0 0 16px;opacity:.95;\">Fai il nostro test di livello gratuito e ricevi un feedback personalizzato da esaminatori certificati Cambridge.<\/p><a href=\"\/it\/inglese\/accademia\/test-gratuito\/\" style=\"display:inline-block;margin-top:8px;padding:13px 30px;border-radius:8px;font-weight:700;text-decoration:none;background:#0A2540;color:#fff;\">Fai il nostro test di livello GRATUITO<\/a><\/div>\n<h2>What Does '<span data-no-translation>On Offer<\/span>' Mean?<\/h2>\n<p>When something is <span data-no-translation>on offer<\/span>, it means it is available at a reduced price. Shops use this to attract customers.<\/p>\n<ul>\n<li>It is a temporary discount.<\/li>\n<li>You can save money when items are <span data-no-translation>on offer<\/span>.<\/li>\n<\/ul>\n<h2>When Do We Use '<span data-no-translation>On Purpose<\/span>'?<\/h2>\n<p>If you do something <span data-no-translation>on purpose<\/span>, you do it intentionally. It means you planned to do it, and it was not an accident.<\/p>\n<ul>\n<li>It often implies a negative action, but not always.<\/li>\n<li>It answers the question 'Why did you do that?'<\/li>\n<\/ul>\n<h2>Understanding '<span data-no-translation>On Duty<\/span>' and '<span data-no-translation>On Leave<\/span>'<\/h2>\n<p>La frase <span data-no-translation>on duty<\/span> describes someone who is working at a specific time. They are performing their job responsibilities.<\/p>\n<ul>\n<li>This phrase is often used for professions like police officers, nurses, or security guards.<\/li>\n<li>The opposite is <span data-no-translation>off duty<\/span> (not working) or <span data-no-translation>on leave<\/span> (taking time off work, like a holiday).<\/li>\n<\/ul>\n<h2>How to Use '<span data-no-translation>On Average<\/span>'?<\/h2>\n<p>Utilizziamo <span data-no-translation>on average<\/span> to talk about a typical or usual amount, rate, or number. It means 'typically' or 'usually'.<\/p>\n<ul>\n<li>You calculate it by adding several amounts and dividing by the number of amounts.<\/li>\n<li>It helps to describe general trends or habits.<\/li>\n<\/ul>\n<h2>What is '<span data-no-translation>On Condition That<\/span>'?<\/h2>\n<p>This phrase introduces a condition that must be met for something else to happen. It means 'only if' or 'provided that'.<\/p>\n<ul>\n<li>It creates a dependent relationship between two actions or events.<\/li>\n<li>The second part of the sentence will only happen if the first condition is true.<\/li>\n<\/ul>\n<h2>Explaining '<span data-no-translation>On Behalf Of<\/span>'<\/h2>\n<p>When you do something <span data-no-translation>on behalf of<\/span> someone, you do it as their representative or for their benefit. You are acting for them.<\/p>\n<ul>\n<li>It is used in formal situations, like accepting an award for someone else.<\/li>\n<li>It can also mean 'in the interest of' or 'for the good of'.<\/li>\n<\/ul>\n<h2>Using '<span data-no-translation>On Balance<\/span>' for Decisions<\/h2>\n<p>La frase <span data-no-translation>on balance<\/span> means 'after considering all the facts' or 'when everything is taken into account'. You use it to give an overall opinion or conclusion.<\/p>\n<ul>\n<li>It suggests you have weighed the pros and cons.<\/li>\n<li>It helps to express a final judgment or summary.<\/li>\n<\/ul>\n<table>\n<caption>Summary of Phrases with &#x27;On&#x27;<\/caption>\n<thead>\n<tr>\n<th>Phrase<\/th>\n<th>Significato<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-no-translation>On offer<\/span><\/td>\n<td><span data-no-translation>Available at a reduced price; a discount<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-no-translation>On purpose<\/span><\/td>\n<td><span data-no-translation>Intentionally; not by accident<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-no-translation>On duty<\/span><\/td>\n<td><span data-no-translation>Working; performing job responsibilities<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-no-translation>On average<\/span><\/td>\n<td><span data-no-translation>Typically; usually; calculated mean<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-no-translation>On condition that<\/span><\/td>\n<td><span data-no-translation>Only if; provided that; with the requirement that<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-no-translation>On behalf of<\/span><\/td>\n<td><span data-no-translation>As a representative of; for the benefit of<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-no-translation>On balance<\/span><\/td>\n<td><span data-no-translation>After considering everything; overall<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Esempi<\/h2>\n<ul>\n<li><span data-no-translation>The new smartphones are currently on offer at a fantastic price.<\/span><\/li>\n<li><span data-no-translation>I didn't mean to spill the coffee; it wasn't on purpose.<\/span><\/li>\n<li><span data-no-translation>The doctor is on duty for the next eight hours.<\/span><\/li>\n<li><span data-no-translation>On average, I read two books a month.<\/span><\/li>\n<li><span data-no-translation>You can borrow my car on condition that you fill it with petrol.<\/span><\/li>\n<li><span data-no-translation>She accepted the award on behalf of her entire team.<\/span><\/li>\n<li><span data-no-translation>On balance, I think moving to a new city was the right decision.<\/span><\/li>\n<\/ul>\n<h2>Esercitazione<\/h2>\n<div class=\"h5p-iframe-wrapper\"><iframe id=\"h5p-iframe-2057\" class=\"h5p-iframe\" data-content-id=\"2057\" style=\"height:1px\" src=\"about:blank\" frameborder=\"0\" scrolling=\"no\" title=\"FCE05 L5 VOCABULARY Phrases with &quot;on&quot;\"><\/iframe><\/div>\n<div class=\"lc-cta lc-cta-exam\" style=\"border-radius:14px;padding:30px;margin:30px 0;text-align:center;color:#fff;background:#0A2540;\"><h3 style=\"color:#F2B705;font-size:22px;font-weight:800;margin:0 0 8px;\">Sei pronto a ottenere il tuo certificato?<\/h3><p style=\"margin:0 0 16px;opacity:.92;\">Il corso Langcom prepara gli studenti agli esami Cambridge, IELTS, TOEFL, DELE, SIELE e Michigan.<\/p><a href=\"\/it\/\" style=\"display:inline-block;margin-top:8px;padding:13px 30px;border-radius:8px;font-weight:700;text-decoration:none;background:#F2B705;color:#0A2540;\">Inizia a utilizzare Langcom<\/a><\/div>\n<h2>Errori comuni per chi parla spagnolo<\/h2>\n<p>Spanish speakers sometimes make mistakes with these phrases because they try to translate directly or use a different preposition.<\/p>\n<ul>\n<li><strong>Using 'in' instead of 'on':<\/strong> For example, saying <span data-no-translation><s>in offer<\/s><\/span> anzich\u00e9 <span data-no-translation>on offer<\/span>. Remember that <span data-no-translation>on<\/span> is fixed in these expressions.<\/li>\n<li><strong>Forgetting 'that' in 'on condition that':<\/strong> It's common to say <span data-no-translation><s>on condition you help<\/s><\/span>. The full phrase is <span data-no-translation>on condition that you help<\/span>.<\/li>\n<li><strong>Confusing 'on purpose' with 'by accident':<\/strong> These are opposites. <span data-no-translation>On purpose<\/span> means intentionally, while <span data-no-translation>by accident<\/span> means unintentionally.<\/li>\n<li><strong>Direct translation of 'on behalf of':<\/strong> While 'en nombre de' is a good translation, ensure you use <span data-no-translation>on behalf of<\/span> as a complete unit.<\/li>\n<\/ul>\n<p>Always learn these phrases as complete units, not individual words, to avoid errors.<\/p>\n<h2>Domande frequenti<\/h2>\n<h3>Are these phrases common in everyday English?<\/h3>\n<p>Yes, all the phrases taught here \u2013 <span data-no-translation>on offer<\/span>, <span data-no-translation>on purpose<\/span>, <span data-no-translation>on duty<\/span>, <span data-no-translation>on average<\/span>, <span data-no-translation>on condition that<\/span>, <span data-no-translation>on behalf of<\/span>, e <span data-no-translation>on balance<\/span> \u2013 are very common in everyday conversations and written English at the B2 level.<\/p>\n<h3>How can I remember these phrases?<\/h3>\n<p>The best way to remember them is to use them! Try to create your own example sentences for each phrase. Listen for them in movies, TV shows, and podcasts. You can also keep a vocabulary notebook and review them regularly. Practice makes perfect!<\/p>\n<h3>Will these phrases appear in the B2 First (FCE) exam?<\/h3>\n<p>Yes, vocabulary phrases like these are very likely to appear in the B2 First (FCE) exam, especially in the Reading and Use of English paper. You might find them in gap-fill exercises, multiple-choice questions, or even need to use them in the Writing paper to express yourself clearly and naturally.<\/p>\n<h3>Is 'on' always used with these words?<\/h3>\n<p>For the specific phrases we covered, yes, <span data-no-translation>on<\/span> is a fixed part of the expression. Changing the preposition would change the meaning or make the phrase incorrect. For example, you cannot say <span data-no-translation><s>in offer<\/s><\/span> oppure <span data-no-translation><s>for purpose<\/s><\/span>.<\/p>\n<h2>Lezioni correlate<\/h2>\n<ul>\n<li><a href=\"https:\/\/langcom.org\/it\/?p=272741\">Phrases with prepositions<\/a><\/li>\n<li><a href=\"https:\/\/langcom.org\/it\/?p=273378\">Phrases with prepositions<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Understanding fixed phrases with the preposition on is essential for B2 English learners to sound natural and precise. These phrases are common in everyday conversation and formal contexts, helping you express specific ideas clearly. For example, you might buy something on offer to save money, or do something on purpose, meaning intentionally. Knowing these expressions [&hellip;]<\/p>\n","protected":false},"author":192,"featured_media":274624,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"bwfblock_default_font":"","langcom_teaches":"Phrases with prepositions","langcom_cefr":"B2","langcom_type":"vocabulary","langcom_faq":"[{\"q\": \"Are these phrases common in everyday English?\", \"a\": \"Yes, all the phrases taught here \u2013 <span data-no-translation>on offer<\/span>, <span data-no-translation>on purpose<\/span>, <span data-no-translation>on duty<\/span>, <span data-no-translation>on average<\/span>, <span data-no-translation>on condition that<\/span>, <span data-no-translation>on behalf of<\/span>, and <span data-no-translation>on balance<\/span> \u2013 are very common in everyday conversations and written English at the B2 level.\"}, {\"q\": \"How can I remember these phrases?\", \"a\": \"The best way to remember them is to use them! Try to create your own example sentences for each phrase. Listen for them in movies, TV shows, and podcasts. You can also keep a vocabulary notebook and review them regularly. Practice makes perfect!\"}, {\"q\": \"Will these phrases appear in the B2 First (FCE) exam?\", \"a\": \"Yes, vocabulary phrases like these are very likely to appear in the B2 First (FCE) exam, especially in the Reading and Use of English paper. You might find them in gap-fill exercises, multiple-choice questions, or even need to use them in the Writing paper to express yourself clearly and naturally.\"}, {\"q\": \"Is 'on' always used with these words?\", \"a\": \"For the specific phrases we covered, yes, <span data-no-translation>on<\/span> is a fixed part of the expression. Changing the preposition would change the meaning or make the phrase incorrect. For example, you cannot say <span data-no-translation><s>in offer<\/s><\/span> or <span data-no-translation><s>for purpose<\/s><\/span>.\"}]","_kiss_seo_title":"","_kiss_seo_excerpt":"Understanding fixed phrases with the preposition on is essential for B2 English learners to sound natural and precise.","_mwseo_canonical":"","_mwseo_keywords":"","_mwseo_primary_category":0,"footnotes":""},"categories":[620],"tags":[1188,649],"formats":[],"class_list":["post-273474","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-b2-first-fce","tag-phrases-with-on","tag-vocabulary"],"dsm_author":{"name":"Ra\u00fal","avatar_url":"https:\/\/langcom.org\/wp-content\/uploads\/nsl_avatars\/1de86ea706740d324aaef3dd8bf0843b.png","archive_link":"https:\/\/langcom.org\/it\/blog\/author\/raulmaguinahamann\/","biodata":""},"dsm_categories":[{"term_name":"B2 First (FCE)","term_id":620,"term_link":"https:\/\/langcom.org\/it\/blog\/category\/learn-english\/english-exams\/cambridge-main-suite\/b2-first-fce\/"}],"dsm_attachment_categories":[],"dsm_featured_image":{"thumbnail":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1-150x150.webp","medium":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1-300x158.webp","medium_large":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1-768x403.webp","large":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1-1024x538.webp","1536x1536":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1.webp","2048x2048":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1.webp","trp-custom-language-flag":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1-18x9.webp","et-pb-post-main-image":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1-400x250.webp","et-pb-post-main-image-fullwidth":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1-1080x630.webp","et-pb-portfolio-image":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1-400x284.webp","et-pb-portfolio-module-image":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1-510x382.webp","et-pb-portfolio-image-single":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1-1080x567.webp","et-pb-gallery-module-image-portrait":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1-400x516.webp","et-pb-post-main-image-fullwidth-large":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1.webp","et-pb-image--responsive--desktop":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1.webp","et-pb-image--responsive--tablet":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1-980x515.webp","et-pb-image--responsive--phone":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1-480x252.webp","woocommerce_thumbnail":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1-300x300.webp","woocommerce_single":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1-600x315.webp","woocommerce_gallery_thumbnail":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1-100x100.webp","full":"https:\/\/langcom.org\/wp-content\/uploads\/2026\/07\/phrases-with-prepositions-b2-vocabulary-english-langcom-1.webp"},"dsm_comment_count":0,"_links":{"self":[{"href":"https:\/\/langcom.org\/it\/wp-json\/wp\/v2\/posts\/273474","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/langcom.org\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/langcom.org\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/langcom.org\/it\/wp-json\/wp\/v2\/users\/192"}],"replies":[{"embeddable":true,"href":"https:\/\/langcom.org\/it\/wp-json\/wp\/v2\/comments?post=273474"}],"version-history":[{"count":0,"href":"https:\/\/langcom.org\/it\/wp-json\/wp\/v2\/posts\/273474\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/langcom.org\/it\/wp-json\/wp\/v2\/media\/274624"}],"wp:attachment":[{"href":"https:\/\/langcom.org\/it\/wp-json\/wp\/v2\/media?parent=273474"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/langcom.org\/it\/wp-json\/wp\/v2\/categories?post=273474"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/langcom.org\/it\/wp-json\/wp\/v2\/tags?post=273474"},{"taxonomy":"post_format","embeddable":true,"href":"https:\/\/langcom.org\/it\/wp-json\/wp\/v2\/formats?post=273474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}