how many … he has
How many daughters does he have?
How many stars does he have?
How many grandchildren does he have?
Том проверил свой бумажник, чтобы узнать, сколько у него денег.
Tom checked his wallet to see how much money he had.
Том не знает, сколько у него на это уйдёт времени.
Tom doesn’t know how long it will take him.
А я понятия не имею, сколько у него пальцев на ноге!
And I have no idea how many toes he has!
— The Student (2016)
How many brothers does he have?