Welcome to the board, rana.
It's a mistake to imagine that everybody here on the forum is a sir.
In the western world we have a number of highly educated women who might be prepared to help you.
'Let him go, will you?' is commonly heard if you are giving an order.
'Let her go, did you?' if it takes the form of a question.
The same tag questions can be used whatever the preceding pronoun might be.
Rover
