You can't imagine vs You will not believe

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

You can't imagine

Top 3,000 (common)

You will not believe

Top 2,000 (common)
Most common: You will not believe
 You can't imagineYou will not believe
Pronunciation🇬🇧 //juː kɑːnt ɪˈmædʒɪn//🇺🇸 //ju kɑnt ɪˈmædʒɪn//🇬🇧 //juː wɪl nɒt bɪˈliːv//🇺🇸 //ju wɪl nɑt bɪˈliv//
MeaningYou can't think of how something feels or looks.A phrase used when sharing something surprising or hard to accept.
ExampleYou can't imagine how beautiful the sunset was last night.You will not believe what happened at the party last night!
RegisterNeutralNeutral
How commonTop 3,000 (common)Top 2,000 (common)
Collocationsyou can't imagine the feeling, you can't imagine how much, you can't imagine what happenedyou will not believe your eyes, you will not believe what I saw, you will not believe the news
Antonyms-accept, believe, trust
Common mistakesUsing 'imagine' in the wrong tense, e.g., 'You can't imagined'., Forgetting the contraction, saying 'You can not imagine' instead of 'You can't imagine'.Misusing in formal contexts., Omitting 'you' and using just 'will not believe' incorrectly., Not using appropriate intonation when speaking.
Usage notesUse this phrase to express disbelief or the difficulty of comprehending a situation. It's appropriate in both casual and formal contexts.Use when introducing surprising news. More appropriate in spoken English and informal contexts; avoid in formal writing.

See it in real clips

You can't imagine
You will not believe

Frequently asked questions: You can't imagine vs You will not believe

What's the difference between You can't imagine and You will not believe?

You can't imagine: You can't think of how something feels or looks. You will not believe: A phrase used when sharing something surprising or hard to accept.

Which is more common: You can't imagine and You will not believe?

You will not believe is the most common in everyday English.

Can you show an example of each?

You can't imagine: You can't imagine how beautiful the sunset was last night. You will not believe: You will not believe what happened at the party last night!

Can I use You can't imagine and You will not believe interchangeably?

Not always. You can't imagine and You will not believe 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.