Present Tenses

http://www.isabelperez.com/presentq.htm

http://www.isabelperez.com/happy/tenses/exercises/habits.htm

http://www.isabelperez.com/happy/tenses/exercises/present_6.htm

http://www.isabelperez.com/happy/tenses/going.htm

http://www.isabelperez.com/happy/tenses/will.htm