Answered

Which verb form is used to indicate the perfect progressive tense?
A.verb + -ed
B.be + verb + -ing
C.have + been + verb + -ing
D.have + verb + -ed

Answer :

mnallen360
Present progressive tense is used to show ongoing action, so answer B is correct. 
We are swimming.
They are cooking dinner.
I am looking for help.
She is not cleaning her room.

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