不定式语法→①不定式构成谓语 )不定式和某些形容词构成谓语 Madame is sure to be right He is certain to return 5)不定式和某些被动结构构成复合谓语 He is said to have been in China many times This was thought to be impossible 2021/2/222021/2/22 6 不定式语法→ 不定式构成谓语 4)不定式和某些形容词构成谓语 Madame is sure to be right. He is certain to return. 5)不定式和某些被动结构构成复合谓语 He is said to have been in China many times. This was thought to be impossible. 1