Present Perfect Tense

Present Perfect Simple
Affirmative	Negative		Interrogative
	Long Form	Contracted Form
I have done	I have not done	I haven't done	Have I done?
You have done	You have not done	You haven't done	Have you done?
He/she/it has done	He/she/it has not done	He/she/it hasn't done	Has he/she/it done?
We have done	We have not done	We haven't done	Have we done?
You have done	You have not done	You haven't done	Have you done?
They have done	They have not done	They haven't done	Have they done?
Present Perfect Continuous
Affirmative	Negative		Interrogative
	Long Form	Contracted Form
I have been doing	I have not been doing	I haven't been doing	Have I been doing?
You have been doing	You have not been doing	You haven't been doing	Have you been doing?
He/she/has been doing	He/she/it has not  been doing	He/she/it hasn't been doing.	Has he/she/it been doing?
We have been doing	We have not been doing	We haven't been doing	Have we been doing?
You have been doing	You have not been doing	You haven't been doing	Have you been doing?
They have been doing	They have not been doing	They haven't been doing	Have they been doing?

The present perfect is used to refer to actions which take place in an
unfinished time period up to the time of speaking.

• The present perfect continuous tense is used to refer to an action
      which started in the past and continues today.