Remember vs You know what it was

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

Remember

Top 1,000 (very common)A1verb

You know what it was

InformalTop 2,000 (common)
Most formal: RememberMost common: Remember
 RememberYou know what it was
Pronunciation🇬🇧 /["/rɪˈmembə(r)/","/rɪˈmembəz/","/rɪˈmembəd/","/rɪˈmembərɪŋ/"]/🇺🇸 /["/rɪˈmembər/","/rɪˈmembərz/","/rɪˈmembərd/","/rɪˈmembərɪŋ/"]/🇬🇧 //juː nəʊ wɒt ɪt wəz//🇺🇸 //ju noʊ wʌt ɪt wəz//
MeaningTo keep something in your mind.A way to express understanding or recognition of a past event.
ExamplePlease remember to bring your homework tomorrow.When I saw her reaction, I thought, 'You know what it was!'
RegisterNeutralInformal
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelA1-
Part of speechverb
Collocationsclearly, distinctly, vividly, can, try to, be important to, as, for, clearly, distinctly, vividly, can, try to, be important to, as, for, clearly, distinctly, vividly, can, try to, be important to, as, foryou know what I mean, you know what it's like, you know what happened
Antonymsforget-
Common mistakesUsing 'remember' when you mean 'remind'., Confusion between 'remember' and 'forget'., Omitting the object, e.g., saying 'I remember' without specifying what.Misused in formal settings where standard expressions are preferred., Omitted necessary context when used, leading to confusion.
Usage notesUse 'remember' when referring to recalling information or past experiences. It is neutral and widely applicable but avoid in very formal contexts where alternatives like 'recollect' might be more suitable.Commonly used in casual conversations among friends to acknowledge shared experiences. Best avoided in formal contexts.

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Remember
You know what it was

Frequently asked questions: Remember vs You know what it was

What's the difference between Remember and You know what it was?

Remember: To keep something in your mind. You know what it was: A way to express understanding or recognition of a past event.

Which is more formal: Remember and You know what it was?

Remember is the most formal of these.

Which is more common: Remember and You know what it was?

Remember is the most common in everyday English.

Can you show an example of each?

Remember: Please remember to bring your homework tomorrow. You know what it was: When I saw her reaction, I thought, 'You know what it was!'

Can I use Remember and You know what it was interchangeably?

Not always. Remember and You know what it was 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.