should和ought to的肯定、否定、疑问及其回答的形式?意义?重点?
问题描述：
should和ought to的肯定、否定、疑问及其回答的形式?意义?重点?
答
should和ought to都可译为“应该”，表示义务、责任或某个正确的行为。ought to比should语气略强些，多用于肯定句；疑问句与否定结构则多用should。should/ought to +have +过去分词表示过去应该做（或完成）而没有做的事。
He ought to have returned by now.
He had to change his plans, but he should be returning soon.
答
should should not should i go to school?yes,you should.
应该（偏向于主观）
ought to ought not to ought i to go to school?yes,you ought to.
应该（偏向于客观事实）