Primero medio B

Form of Present Perfect

	Positive	Negative	Question
I / you / we / they	I have spoken.	I have not spoken.	Have I spoken?
he / she / it	He has spoken.	He has not spoken.	Has he spoken?

For irregular verbs, use the participle form (see list of irregular verbs, 3rd column). For regular verbs, just add “ed”.

EXERCISES 

http://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?03

http://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises

http://www.better-english.com/grammar/presentperfect1.htm

http://www.englishexercises.org/makeagame/viewgame.asp?id=2998

http://www.englishexercises.org/makeagame/viewgame.asp?id=1625