第2个回答 2022-07-31
其实简单地说要将动词分成几类来学习:
1. be动词:其现在时态形式是am、is、are;或was、were
所以第三人称单数只是is、was,由于是be动词,后面跟名词、形容词、介词短语等,例如:
Is your father a doctor?(注意:初学者会看到your会认为不是单数,其实 your father “你父亲”,就是他,单数。)——还原:MY father is a doctor.
Was their teacher young?(同样地,不能看their是复数,their teacher是单数。)——还原:Their teacher is young.
另外:Are his friends from Lodon?(与上述例子相反,不能看到his就是单数,his friends是复数。)——还