ESO 4. Unit 2 Present Perfect

This notes are a summary of the several tenses we've been working on this unit. Present Perfect, Past Simple and Present Perfect continuous are explained through them.

http://www.ego4u.com/en/cram-up/grammar/prepersim-preperpro/tests?test1

http://www.ego4u.com/en/cram-up/grammar/prepersim-preperpro/tests?test2

http://www.englishpage.com/verbpage/verbs5.htm

http://www.englishpage.com/verbpage/verbs6.htm

http://www.englishpage.com/verbpage/verbs8.htm

http://www.englishgrammarsecrets.com/presentperfectorpastsimple/exercise1.swf

http://www.englishgrammarsecrets.com/presentperfectorpastsimple/exercise2.swf

http://www.englishgrammarsecrets.com/presentperfectorpastsimple/exercise3.swf

http://www.englishgrammarsecrets.com/presentperfectorpastsimple/exercise4.swf

The following slides might clarify any doubts you still can have about these tenses; check them in case you missed some aspects: