But you first vs Go ahead

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

But you first

Beyond 10,000 (less common)

Go ahead

Top 2,000 (common)
Most common: Go ahead
 But you firstGo ahead
Pronunciation🇬🇧 //bʌt jʊ fɜːst//🇺🇸 //bʌt jʊ fɜrst//🇬🇧 //ɡəʊ əˈhɛd//🇺🇸 //ɡoʊ əˈhɛd//
MeaningYou go before me.to proceed or continue doing something
ExampleHe opened the door and said, 'But you first.'You can go ahead and start the meeting without me.
RegisterNeutralNeutral
How commonBeyond 10,000 (less common)Top 2,000 (common)
Collocationssay but you first, use but you first, hear but you firstgo ahead with a plan, go ahead and do something, go ahead and ask
Antonyms-stop, pause, hesitate
Common mistakesUsing 'but you first' in very formal situations might sound too casual., Some learners misplace the phrase in a sentence when trying to integrate it.Overusing in formal contexts where 'please proceed' is more appropriate., Confusing with 'go on' which implies continuation rather than permission., Not using appropriate pauses in dialogue.
Usage notesUsed in polite conversation to allow someone else to go ahead. Suitable for both formal and informal settings.Used to give permission or encourage someone to start. Usually neutral but can be informal in casual conversations.

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But you first
Go ahead

Frequently asked questions: But you first vs Go ahead

What's the difference between But you first and Go ahead?

But you first: You go before me. Go ahead: to proceed or continue doing something

Which is more common: But you first and Go ahead?

Go ahead is the most common in everyday English.

Can you show an example of each?

But you first: He opened the door and said, 'But you first.' Go ahead: You can go ahead and start the meeting without me.

Can I use But you first and Go ahead interchangeably?

Not always. But you first and Go ahead 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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