Extend vs I will buy you time

When to use each in English, with meaning, register, and examples.

Extend

Top 2,000 (common)B2verb

I will buy you time

Top 5,000 (fairly common)
Most common: Extend
 ExtendI will buy you time
Pronunciation🇬🇧 /["/ɪkˈstend/","/ɪkˈstendz/","/ɪkˈstendɪd/","/ɪkˈstendɪŋ/"]/🇺🇸 /["/ɪkˈstend/","/ɪkˈstendz/","/ɪkˈstendɪd/","/ɪkˈstendɪŋ/"]/🇬🇧 //aɪ wɪl baɪ jʊ taɪm//🇺🇸 //aɪ wɪl baɪ jʊ taɪm//
MeaningTo make something longer or bigger.I will give you extra time to do something.
ExampleWe need to extend the deadline for our project submission.I will buy you time to finish your project.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 5,000 (fairly common)
CEFR levelB2-
Part of speechverb
Collocationsgreatly, significantly, beyond, from, to, greatly, significantly, beyond, from, to, greatly, significantly, beyond, from, tobuy some time, buy time for, help buy time
Antonymsshorten, reduce-
Common mistakesConfused with 'expand' — forgetting that 'extend' often refers to length rather than volume., Using the wrong preposition with 'extend', like 'extend to' instead of 'extend for'.Confused with 'buy time' as a physical transaction., Using it in very formal contexts where it seems out of place.
Usage notesUse 'extend' when talking about adding time, space, or length. Appropriate in both casual and formal contexts, but avoid using in overly informal situations.Used informally to convey the idea of delaying or giving someone more time. Suitable in personal and casual contexts but less appropriate in formal situations.

See it in real clips

Extend
I will buy you time

Frequently asked questions: Extend vs I will buy you time

What's the difference between Extend and I will buy you time?

Extend: To make something longer or bigger. I will buy you time: I will give you extra time to do something.

Which is more common: Extend and I will buy you time?

Extend is the most common in everyday English.

Can you show an example of each?

Extend: We need to extend the deadline for our project submission. I will buy you time: I will buy you time to finish your project.

Can I use Extend and I will buy you time interchangeably?

Not always. Extend and I will buy you time are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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