http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-48709.php
http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-36326.php
http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-54411.php

exercices 9°
http://www.englishgrammarsecrets.com/usedto/exercise1.html
http://www.englishgrammarsecrets.com/usedto/exercise2.html
http://www.englishgrammarsecrets.com/usedto/exercise3.html
http://www.englishgrammarsecrets.com/usedto/exercise4.html
http://oud.digischool.nl/en/grammatica/pastsimpperf-vraag1.htm
http://www.ego4u.com/en/cram-up/grammar/simpas-pasper/exercises
http://www.esl-lounge.com/student/grammar/2g43-so-rich-such-wealth.php
http://www.usingenglish.com/quizzes/236.html
http://www.englishgrammarsecrets.com/pastsimple/exercise4.swf
http://www.usingenglish.com/quizzes/311.html

http://www.saberingles.com.ar/lists/verbs.html
http://www.eslgamesplus.com/irregular-past-tense-esl-grammar-jeopardy-quiz-game/
http://matchthememory.com/pastparticiple
http://www.grammar.cl/Games/Past_Participles.htm
http://www.studyspanish.com/lessons/pastperfect.htm
http://www.ego4u.com/en/cram-up/grammar/past-perfect-simple/exercises
http://www.englisch-hilfen.de/en/exercises/tenses/past_perfect_simple_past.htm
http://www.eslgamesplus.com/present-perfect-vs-past-tenses-rally/