l can speak two languages., She can't play tennis, Can you swim?, Can he play baseball?, They can climb trees., yes, I can., no, I can't., Jane could speak three languages when she was ten., Could you open the window, please?, John couldn’t swim when he was a child, yes, I could., no, I couldn't,

can / can't - could / couldn't

Leaderboard

Visual style

Options

Switch template

Continue editing: ?