求助!!!帮我造句满足Tense +(Moda)+(Perfect)+(Progressive)+Verb的句子

来源:百度知道 编辑:UC知道 时间:2024/06/01 03:44:11
我的语法书上写main verb的组成是 Tense +(Moda)+(Perfect)+(Progressive)+Verb

谁能帮我造句满足这些条件的句子?

Modal+Verb. I can swim across the river.
Modal+Perfect.情态动词+完成时。You should have seen him off yesterday.你昨天本来应该去送他的。(对过去的虚拟)
Modal+Perfect+Progressive+Verb.情态动词+完成进行时He must have been listening to music when you knocked at the door.Or he would open the door for you.你敲门的时候他一定正在听音乐,不然他会给你开门的。(对过去的推测)