Prepositions · CEFR B1 · Independent
during / by / until / from…to — English prepositions
By is a deadline — not later than. Until is a continuation — right up to. Confusing them changes the meaning completely.
The shape
during + noun · by + deadline · until + end · from X to Y
Talk about deadlines and stretches of time.
In Hindi
by यानी उससे पहले-पहले। until यानी उस वक़्त तक लगातार। दोनों का मतलब बिलकुल अलग है।
CoCap explains every structure in both languages, because a rule you understand in Hindi is a rule you can use in English.
The mistake to fix first
The sentence Indian-English speakers actually produce, and the reason it is wrong.
| Commonly said | Correct English |
|---|---|
I will finish it until Friday. | I will finish it by Friday. Finishing is a deadline, so it takes "by". "Until" would mean you keep finishing it. |
Learn these first
These come first. The rest of this makes more sense once they are automatic.
Questions people ask
- What is the during / by / until / from…to used for?
- By is a deadline — not later than. Until is a continuation — right up to. Confusing them changes the meaning completely. In practice: talk about deadlines and stretches of time.
- How do you form the during / by / until / from…to?
- during + noun · by + deadline · until + end · from X to Y.
- What is the most common mistake with the during / by / until / from…to?
- Saying “I will finish it until Friday.” instead of “I will finish it by Friday.”. Finishing is a deadline, so it takes "by". "Until" would mean you keep finishing it.
Where during / by / until / from…to fits
Where this structure sits in the ladder, and what surrounds it.
during / by / until / from…to is a CEFR B1 structure — the independent band — and it belongs to prepositions. CoCap’s syllabus files every structure this way so you can learn in order instead of jumping between whatever a search happened to return.
Reading it is not the same as saying it.
CoCap turns this page into practice: Hindi sentence in, English sentence out, corrected one thing at a time. Free, no card.
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