مثال مهم..
You meet a pilot. You ask( how long /be)

How long have you been a pilot?

عند عدم وجود فاعل تجيب الضمير you

How long have you been +ing?

مع المضارع التام المستمر.. نتبع هذه الطريقة في تكوين جملة
You have a friend who is learning English. ( How long/ learn)

How long have you been learning English?

been gone...

تاتي في الاختيارات

I have been to London.

Have you ever been to London?

He has gone to the mall. He isn't at home

He has gone to the cinema. He will be back soon.

الحمدلله اثنين من توقعي

تمت السنة... والحمدلله نتمنى لكم التوفيق