sur quel bouton

which button

→ sur
phrase Rare #40,531
which button Used when asking which button to press or which button someone pressed. The preposition sur is required with appuyer in French.
FR: Je ne sais pas sur quel bouton cliquer.
EN: I don't know which button to click.

Pouvez-vous me dire sur quel bouton appuyer?

Can you tell me which button to press?

Je ne sais pas sur quel bouton appuyer.

I don't know which button to press.

Sur quel bouton as-tu appuyé?

Which button did you press?

Je ne sais pas sur quel bouton je dois appuyer.

I don't know which button I should press.

Sur quel bouton avez-vous appuyé?

Which button did you press?