1 Decide if the sentences express suggestion, advice, possibility or ability in the past. I could write before I went to school ability in the past 1 You could talk a bit less and listen more. 2 You should try and eat less and walk more 3 He could play the piano when he was 3. 4 You could have an accident on that old bike. s i couldn't swim when I was a kid. 6 Paul should find a new girlfriend, he's so unhappy