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PRESENT PERFEC VERB TO BE

Affirmative:
The present perfect describes a past action connected with the present time form. The present perfect by placing have/ has before the past participle of theverbs.

+ have / has + V in PP. + Complement.
I have spoken to him about it several times.

Negative:
Form the negative of the present perfect by placing not after have/has.Contraction Haven´t / Hasn´t.

+ haven´t / hasn´t + V in PP. + Complement.
He hasn´t worked very hard.

Question:
Form the question with the present perfect by placing Have / has beforethe subject.

have / has + + V in PP. + Complement.
Have they waited there a long time?

PRESENT CONTINUOUS

Affirmative:
The present continuous describes an action which is goingon at the moment of speaking and is not yet complete. Form the present continuous with the present of the verb to be and the present participle of the main verb.

+verb to be + V ing +Complement.
They´re waiting for us downstairs.

Negative:
Form the negative of the present perfect by placing not after have/has. Contraction Haven´t / Hasn´t.

+ haven´t / hasn´t + V inPP. + Complement.
He hasn´t worked very hard.

Question:
Form the question with the present perfect by placing Have / has before the subject.

have / has + + V in PP. + Complement.Have they waited there a long time?
PRESENT PERFECT

Affirmative:
Form the present perfect continuous tense by placing have/has or its contracted form before been plus the present participle ofthe verb.

+have / has + Been + V ing + Complement.
She has been working there for many years.

Negative:
Form the negative of the present perfect by placing not after have/has.Contraction Haven´t / Hasn´t.

+haven’t / hasn’t + Been + V ing + Complement.
She hasn´t been working there for many years.

Question:
Form the question with the present perfect by...