• We use the present perfect continuous in actions and situaions that started in the past and still continue at the moment of speaking.
• Temporary actions and situations in the recent past.

Examples:

• I´ve been taking photos for ne hour.
• Sandra and julio have just been eating a pizza.
• My brother has been cooking since 10:00 am.

NEGATIVE FORM:

• Carlos hasn´t been working in the university
• I haven´t been studying english.
• My cat hasn´t been drinking milk for two days.

• We use present perfect for actions and situations that happened at an unspecified time before the moment of speaking.
• Actions and situations that started in the past and still happen.
• To form the present perfect you have to use the past participle of the verb.

Examples:

• Arturo has gone to the concert.
• Joseph has believed inghost since he was achild.
• they have eaten a lot of fruit.
• Rosa hasn´t studied for the exam.
• We haven´t lived in MIAMI since 1995.
• My brother hasn´t broken the window.

INTERROGATIVE FORM:

• Has your brother danced at the party?
• Have you done the exercises?
• Have they bought the car?
• Has your boyfriend written a poem?