Present Perfect form

Grammar explanations Present Perfect diagram
Present Perfect form
Present Perfect use
Present Perfect spelling
Present Perfect signal words
Exercises Present Perfect Simple

Present Perfect Tense is built with have or has (only in the third person singular) and past participle.
Past participle = the third column in the box with irregular verbs, or infinitive + -d, -ed.

Form

  Affirmative sentences Short forms
I I have written a letter. I've written a letter.
you You have written a letter. You've written a letter.
he He has written a letter. He's written a letter.
she She has written a letter. She's written a letter.
it It has written a letter. It's written a letter.
we We have written a letter. We've written a letter.
you You have written a letter. You've written a letter.
they They have written a letter They've written a letter.
  Negative sentences Short forms
I I have not written a letter.

I haven't written a letter.

you You have not written a letter. You haven't written a letter.
he He has not written a letter. He hasn't written a letter.
she She has not written a letter. She hasn't written a letter.
it It has not written a letter. It hasn't written a letter.
we We have not written a letter. We haven't written a letter.
you You have not written a letter. You haven't written a letter.
they They have not written a letter. They haven't written a letter.
  Questions  
I Have I written a letter?  
you Have you written a letter?  
he Has he written a letter?  
she Has she written a letter?  
it Has it written a letter?  
we Have we written a letter?  
you Have you written a letter?  
they Have they written a letter?  
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