4.1. Am I ..? Yes, I am/No I'm not. Are you..?Yes, I am/No, I'm not Is she..?Yes ,she is/No,she isn't Is he..?Yes ,he is/No,he isn't Is it..?Yes ,it is/No,it isn't Are you..?Yes,we are/No,we aren't Are we..?Yes,we are/No,we aren't Are they..?Yes,they are/No,they aren't