不定式语法→①不定式构成谓语 不定式构成谓语有下面几种方式: 1)不带to的不定式和某些助动词构成谓语 Shall I help you I will be back right now 2)不带to的不定式和情态动词构成谓语 We must keep this in mind How can we convince him? 3)不定式和某些动词构成谓语 She happened to live in the same area You appear to have traveled a lot 2021/2/222021/2/22 5 不定式语法→ 不定式构成谓语 不定式构成谓语有下面几种方式： 1)不带to的不定式和某些助动词构成谓语 Shall I help you? I will be back right now. 2)不带to的不定式和情态动词构成谓语 We must keep this in mind. How can we convince him? 3)不定式和某些动词构成谓语 She happened to live in the same area. You appear to have traveled a lot. 1