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Demander une question
Poser une question
The French verb demander
has several tricky aspects to it. Perhaps most importantly, it is a faux ami
- it doesn't mean "to demand," but rather "to ask":
Il m'a demandé pourquoi.
He asked me why.
Demander quelque chose à quelqu'un
means "to ask someone for something." Note that in French there is no preposition in front of the thing being asked for, but there is a preposition in front of the person being asked:
Je vais demander un stylo à Michel.
I'm going to ask Michel for a pen.
And finally, demander
can't be used with the word question
- "to ask a question" in French is poser une question
Puis-je te poser une question ?
Can I ask you a question?
Other ways to say "ask a question" in French are adresser une question (à quelqu'un)
and formuler une question
Verbs with prepositions
Conjugations for demander