Sure vs You do

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

Sure

Top 1,000 (very common)A1adjective

You do

Top 2,000 (common)
Most common: Sure
 SureYou do
Pronunciation🇬🇧 /["/ʃʊə(r)//ʃɔː(r)/"]/🇺🇸 /["/ʃʊr/"]/🇬🇧 //juː duː//🇺🇸 //ju du//
Meaningcertain or confident about somethingA phrase used to emphasize agreement or affirmation.
ExampleI am sure that we will win the game.If you think that's the best plan, then you do.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelA1-
Part of speechadjective
Collocationsbe, feel, seem, absolutely, completely, quite, about, of, be, feel, seem, absolutely, completely, quite, about, ofyou do agree, you do think, you do realize
Antonymsuncertain, doubtful, unsure-
Common mistakesUsed too casually in formal situations., Confused with 'surely' which implies a stronger confirmation., Mispronounced as 'sher' instead of 'shur'.Overusing it in formal contexts., Confusing it with other affirmative phrases like 'you do it'.
Usage notesUsed to express agreement or assurance. It's typically appropriate in most casual and formal contexts, but can feel dismissive if overused in a conversation.Use this phrase to affirm a statement or respond positively. It's casual and fits in conversations but may not be suitable for formal settings.

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Sure
You do

Frequently asked questions: Sure vs You do

What's the difference between Sure and You do?

Sure: certain or confident about something You do: A phrase used to emphasize agreement or affirmation.

Which is more common: Sure and You do?

Sure is the most common in everyday English.

Can you show an example of each?

Sure: I am sure that we will win the game. You do: If you think that's the best plan, then you do.

Can I use Sure and You do interchangeably?

Not always. Sure and You do 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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