"Τι απαγορεύεται;"

Translation: What is forbidden?

[Dmatafonov]

If I want to say what you(plural) forbid, how it would sound? The same?

[mizinamo]

Yes, that's right; Τι απαγορεύετε; "What do you(pl.) forbid?" would sound identical.

[HastaLaVista83]

What would this be in the simple past resp. in the simple future?

"απαγορεύτηκε" resp. "θα απαγορευτεί"??

[D_..]

Correct.

[Vemund75118]

The υ confuses me. It sounds like a f, an i, an u, a v, and sometimes like an y.