In French, you can ask questions with "qu'est-ce qui" + [conjugated verb].
Learn how to use "qu'est-ce qui" with a verb in French
Look at these two questions asking What in English:
What are you doing?
-> the subject "you" is doing "what"; here "what" is the object of the action
What is making that noise?
-> "What" is doing the action of making the noise; it's the subject, the "acting" element of the sentence
-> the subject "you" is doing "what"; here "what" is the object of the action
What is making that noise?
-> "What" is doing the action of making the noise; it's the subject, the "acting" element of the sentence
In the first case, you can use qu'est-ce que, que or quoi in French:
Qu'est-ce que tu fais ?
Tu fais quoi ?
See Asking questions in French with "qui/que/quoi/quand/où/comment/pourquoi/combien" (French Question Words)
BUT
Look at these other examples:
BUT
In the second case, you will only be able to use:
qu'est-ce qui + [verb clause]:
qu'est-ce qui + [verb clause]:
Look at these other examples:
Cases with verbs like plaire, manquer, etc...
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Examples and resources
[Literally: What is taking you?]