English exercices 9°

http://verbos-irregulares.blogspot.com/2011/05/verbos4.html

http://first-english.org/english_learning/english_tenses/present_perfect/90_present_perfect_past_participle.htm

http://first-english.org/english_learning/english_tenses/present_perfect/91_present_perfect_3_form_crossword.htm

http://esl.fis.edu/grammar/multi/ppsppc.htm

http://www.ego4u.com/en/cram-up/grammar/prepersim-preperpro/exercises

http://www.my-english.edu.pl/index.php?id=57