{"id":6030,"date":"2025-06-03T01:00:00","date_gmt":"2025-06-03T01:00:00","guid":{"rendered":"https:\/\/tutor.engoo.com\/blog\/?p=6030"},"modified":"2025-05-22T03:13:19","modified_gmt":"2025-05-22T03:13:19","slug":"by-until-yet","status":"publish","type":"post","link":"https:\/\/tutor.engoo.com\/blog\/teaching-grammar\/by-until-yet\/","title":{"rendered":"Explaining the Difference: \"By\" and \"Until\""},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/tutor.engoo.com\/blog\/teaching-grammar\/by-until-yet\/#By\" >By<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/tutor.engoo.com\/blog\/teaching-grammar\/by-until-yet\/#Until\" >Until<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/tutor.engoo.com\/blog\/teaching-grammar\/by-until-yet\/#Yet\" >Yet<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/tutor.engoo.com\/blog\/teaching-grammar\/by-until-yet\/#Wrap-up\" >Wrap-up<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>Both \"by\" and \"until\" are prepositions that focus on time. But many students struggle to differentiate between the two and often use one when the other is more appropriate. <\/p>\n\n\n\n<p>This time, we'll dig into some ways we can clearly explain what makes each choice different and when it's best to use one over the other.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"By\"><\/span><strong>By<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"762\" src=\"https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/7\/2024\/05\/15041436\/by_vs_until_2-1-1024x762.jpg\" alt=\"A woman working at a desk in front of a large computer\" class=\"wp-image-6033\" srcset=\"https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/7\/2024\/05\/15041436\/by_vs_until_2-1-1024x762.jpg 1024w, https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/7\/2024\/05\/15041436\/by_vs_until_2-1-300x223.jpg 300w, https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/7\/2024\/05\/15041436\/by_vs_until_2-1-768x571.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\"By\" is used when the focus is on a <strong>deadline<\/strong>, a <strong>particular point<\/strong> at which something must be done or completed. Therefore, it's always followed by a time or specific event.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>I have to finish this project <strong>by Friday morning<\/strong>.<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>They should arrive <strong>by 5 p.m.<\/strong><\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>He should have gotten here <strong>by now<\/strong>.<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>The package should be delivered <strong>by the end of the week<\/strong>.<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>You must complete the test <strong>by the time the alarm sounds<\/strong>.<\/p>\n<\/blockquote>\n\n\n\n<p>In each of these examples, the end of the period of time is the most important thing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Until\"><\/span><strong>Until<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"730\" src=\"https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/7\/2024\/05\/15041533\/by_vs_until_3-1024x730.jpg\" alt=\"A delivery driver riding a scooter through a city at night\" class=\"wp-image-6034\" srcset=\"https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/7\/2024\/05\/15041533\/by_vs_until_3-1024x730.jpg 1024w, https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/7\/2024\/05\/15041533\/by_vs_until_3-300x214.jpg 300w, https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/7\/2024\/05\/15041533\/by_vs_until_3-768x547.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>With \"until,\" however, the end of the period of time isn't the focus; instead it's <strong>the complete period of time<\/strong> \u2014 the beginning, middle and end.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>I have <strong>until Friday morning<\/strong> to finish this project.<\/p>\n<\/blockquote>\n\n\n\n<p>Here, the speaker is referring to <em>all<\/em> of the time they have, which starts from now and continues to Friday morning.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>It took <strong>until 5<\/strong> for them to arrive.<\/p>\n<\/blockquote>\n\n\n\n<p>In this example, the speaker is referencing the complete amount of time that was required for someone to make a journey.<\/p>\n\n\n\n<p>More examples:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>The package was in transit <strong>until this evening<\/strong>.<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>How much longer <strong>until we arrive<\/strong>?<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>You have <strong>until when the alarm sounds<\/strong> to complete the test.<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Until now<\/strong>, I thought \"by\" and \"until\" were interchangeable!&nbsp;<\/p>\n<\/blockquote>\n\n\n\n<p>In each of these sentences, the total period of time is important \u2014 not just the end \u2014 so only \"until\" is correct, not \"by.\"<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Yet\"><\/span><strong>Yet<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Let's finish up with a quick look at one more word that's related to the previous two we've discussed.&nbsp;<\/p>\n\n\n\n<p>\"Yet\" is similar to \"until\" because it also refers to a period of time,&nbsp;but the important difference is that <strong>the period is not finished<\/strong>.&nbsp;<\/p>\n\n\n\n<p>\"Yet\" is mostly used in questions and negative sentences, as in the following examples:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Are you finished <strong>yet<\/strong>?<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Because of some delays, we <strong>haven't completed production<\/strong> <strong>yet<\/strong>.<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>We can't start the meeting because the team leader <strong>hasn't arrived<\/strong> <strong>yet<\/strong>.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Wrap-up\"><\/span><strong>Wrap-up<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>In short, \"by\" refers to a deadline or endpoint, while \"until\" focuses on a total period of time. When the period of time isn't complete, \"yet\" is the best choice. <\/p>\n\n\n\n<p>The explanations we've provided should make the differences between each word easier for your students to grasp. Use the examples above along with your own prompts to test their comprehension <em>until<\/em> they're comfortable using them all. \u23f1\ufe0f<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Both \"by\" and \"until\" are prepositions that focus on time. But many students struggle to differentiate between the two and often use one when the other is more appropriate. 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