But maybe not vs Perhaps not

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

But maybe not

Top 2,000 (common)

Perhaps not

Top 2,000 (common)
 But maybe notPerhaps not
Pronunciation🇬🇧 //bʌt ˈmeɪbi nɒt//🇺🇸 //bʌt ˈmeɪbi nɑt//🇬🇧 //pəˈhæps nɒt//🇺🇸 //pərˈhæps nɑt//
MeaningIt suggests that something might not happen after all.Maybe not
ExampleI thought I would go to the party, but maybe not.I thought about joining the team, but **perhaps not**.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)
Collocationssuggest but maybe not, consider but maybe not, decide but maybe notsuggest that perhaps not, feel that perhaps not, think that perhaps not
Common mistakesOmitting 'but' and saying 'maybe not' which changes the meaning., Using it too firmly rather than expressing uncertainty.Using in overly formal contexts., Confusing with 'maybe' which is less definite., Assuming it expresses strong disagreement.
Usage notesUse to express uncertainty or a change of mind. Can be casual in conversation but less appropriate in formal writing.Used to express uncertainty about a situation or idea. More polite than simply saying 'no'.

See it in real clips

But maybe not
Perhaps not

Frequently asked questions: But maybe not vs Perhaps not

What's the difference between But maybe not and Perhaps not?

But maybe not: It suggests that something might not happen after all. Perhaps not: Maybe not

Can you show an example of each?

But maybe not: I thought I would go to the party, but maybe not. Perhaps not: I thought about joining the team, but **perhaps not**.

Can I use But maybe not and Perhaps not interchangeably?

Not always. But maybe not and Perhaps not 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.