从不生病英语

坚持锻炼身体,在考试的时候不要生病Stick to exercise, and don't get sick in the exam.

Ever since I started exercising, I hardly get sick.

He has never been ill since he went to school.主句用现在完成时态，从句用一般过去时态。一般情况下，生病用 fall ill,但是fall 是个瞬间动词，不能用持续时态，不能与表示从未never 这样的词连接。所以用BE.