Questions & Answers about מי כאן עם האח?
Because in Hebrew, the verb to be is usually left out in the present tense.
So Hebrew says something that is literally closer to:
Who here with the brother?
But in natural English, you translate it as:
Who is here with the brother?
If you wanted was or will be, Hebrew would normally use a form of to be.
מי means who.
A useful thing for learners: מי does not change for masculine vs. feminine, or singular vs. plural. It stays מי in all those cases.
So whether you are asking about:
- one man
- one woman
- several people
you still use מי.