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How do we make the Present Perfect Continuous Tense?

The structure of the Present Perfect Continuous tense is:

subject + auxiliary have + auxiliary be + main verb
conjugated in Present Simple past participle  
have, has been present participle

The first auxiliary (have) is conjugated in the Present Simple: have, has

The second auxiliary (be) is invariable in past participle form: been

The main verb is invariable in present participle form: -ing

For negative sentences we insert not after the first auxiliary verb.

For question sentences, we exchange the subject and first auxiliary verb.

Look at these example sentences with the Present Perfect Continuous tense:

  subject auxiliary verb   auxiliary verb main verb  
+ I have   been waiting for one hour.
+ You have   been talking too much.
- It has not been raining.  
- We have not been playing football.
? Have you   been seeing her?
? Have they   been doing their homework?

Contraction with Present Perfect Continuous

When we use the Present Perfect Continuous tense in speaking, we often contract the subject and the first auxiliary verb. We also sometimes do this in informal writing.

I have been I've been
You have been You've been
He has been
She has been
It has been
John has been
The car has been
He's been
She's been
It's been
John's been
The car's been
We have been We've been
They have been They've been

In negative sentences, we may contract the first auxiliary verb and "not":