patterns of linking-verb判定动词句
linking-verb complement structure系补结构
The Linking Verb系动词;性质上属于接系动词
Passive Voice and Linking Verb被动语态与系表结构
N-COUNT(可数名词) A linking verb is a verb which links the subject of a clause and a complement. "Be," "seem," and "become" are linking verbs. 连系动词