Question

How long you (wait) for me change into present perfect continues tense

Answer 1

The structure of the present perfect continuous tense is :

Subject + has/have + been + v1 + ing + Object + (since / for + time).

So, the sentence comes as :

How long have you been waiting for me ?

{ Here the question is asked , so the structure changes as : Question word + has/have + Subject + been + v1 + ing + Object + (since/for + time) + ? } .

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