A short review about tenses....

Here is a link to all you want to know about tenses.

 

http://www.anglaisfacile.com/exercices/exercice-anglais-2...

Grammaire: past and present perfect

Here is a link  to review the past and the present perfect... Enjoy!

 

http://www.scelva.univ-rennes1.fr/langues/anglais/flopsy/...