Learn Italian: Ce l'hai ancora con me per quello che è successo ieri? - Are you still angry with me for what happened yesterday?

It comes from the pronominal verb avercela (con qualcuno), which means "to be angry" or "to be upset with someone." It is made of the verb avere + the pronoun ci (which changes to ce before another pronoun) + the pronoun la. In this idiom, the la doesn't replace a specific feminine noun; it just refers abstractly to the anger or the issue. Literally, it's like asking "do you have it with me?"

Why is it written as l'hai instead of la hai?

When the direct object pronouns lo or la are followed by a form of the verb avere that begins with an 'h' (like ho, hai, ha, or hanno), the vowel is dropped and replaced with an apostrophe to make pronunciation smoother. So, ce la hai becomes ce l'hai.

Why does the sentence use quello che for "what" instead of just cosa?

In Italian, you use cosa (or che cosa) for question words, like "What did you do?". However, when "what" is used in the middle of a sentence to mean "that which" or "the thing that," you must use quello che (or its equivalent, ciò che). You cannot say "per cosa è successo" here.

Why is the auxiliary verb used in instead of ?