9.9. TICKET INSPECTOR: Ah! I am understanding. (‘I understand’. This is a state verb and is not possible in the continuous.) You want for me to help you friends. (‘Do you want me to help your friends.’) Why didn’t I say that to you before? (What I think he means is ‘Why didn’t you say that to me before?’)  Good evening Sir! Can you help me? (Grammatically correct, but the wrong way round. ‘Can I help you?’)