de quoi il est capable

what he is capable of

→ de
phrase Rare #37,771
what he is capable of Used to refer to what someone can do or is capable of doing.
FR: Je me demande de quoi il est capable.
EN: I wonder what he is capable of.

C'est le moment où un homme montre de quoi il est capable.

This is the moment when a man shows what he’s capable of.

— The Mask (1994)

Qui sait de quoi il est capable ?

Who knows what he's capable of?

Tu as bien vu de quoi il est capable.

You saw what he's capable of.

— Qui suis-je (2014)

Dieu seul sait de quoi il est capable.

Only God knows what he’s capable of.

— The Count of Monte Cristo (2024)

Voyons de quoi il est capable.

Let's see what he's capable of.

— The Grandmaster (2013)

Je sais de quoi il est capable.

I know what he's capable of.

Tu sais de quoi il est capable.

You know what he's capable of.