Ask him for English.

Ask him for English: Ask him for advice.

In English, ask someone something.

consult

The word "consult" is often translated into: consult in English, but if it is a phrase to ask him for advice, it is more appropriate to use "ask him for advice".

Supplement:

Ask someone something in phrases:

ask about

Example:

All you have to do is ask someone about the theater manager and apply for a position. ?

All you have to do is go to the theater and ask someone, meet the manager, and then apply for a position from him.