1.Woodland,Adults Centre,610 Desmarchais.5-10 walk minutes for Verdun Metro station. Easy to find.English classes (level 1-level 6), 10 weeks(April 18--June 29), Monday to Friday,50 dollar.One day one dollar,it's worthy.They hold French classes too. Details you will have to ask them yourself.
2.I know some places where free French courses will be held in a few days.But it is dificult to reach there on foot.
One of them at the Metro station Place St. Henri beginns at April 18.
Good luck! :p
To cheers,
Centre St-Henri, 4115 Saint-Jacques, Tel:5967239. Classes beginn at April 17th.,Monday to Thursday 18:00-22:00, level 1 to level 6. For registration landing paper or CSQ is needed. You'd better call them in the evening,but i'm not very sure, just try.Good luck!