Give advice and make suggestions using could or should I'm sleepy. (go to bed) You should go to bed. 1 I feel tired all the time. (stay up late) 2 I am 100 kilos. (go on a diet) 3 I want to be slim. (eat too much) 4 I feel lonely. (make more friends) 5 My marks at school are terrible. (study more) 6 I am always hungry at school. (miss breakfast)