http://www.perunakellari.fi/Iverbitpc.htm
http://clicmaclasse.fr/activites/etude-langue/passe-compose-er/passe-compose-er_ex01.html
http://clicmaclasse.fr/activites/etude-langue/passe-compose-er/passe-compose-er_ex02.html
http://clicmaclasse.fr/activites/etude-langue/passe-compose-er/passe-compose-er_ex03.html
http://clicmaclasse.fr/activites/etude-langue/passe-compose-er/passe-compose-er_ex04.html