cop: copula
The cop relation is used exclusively for the word 是 / shì “be” primarily as a copula linked to the main predicate, which may often be a noun or adjective. The words 為 / wéi “be, be as” and 非 / fēi “not be” are also included if they are the only verb in a sentence and the latter is semantically equivalent to the opposite of 是 shì.
# visual-style 4 2 cop color:blue
# visual-style 2 bgColor:blue
# visual-style 2 fgColor:white
# visual-style 4 bgColor:blue
# visual-style 4 fgColor:white
1 他 _ PRON _ _ 4 nsubj _ 3SG
2 是 _ VERB _ _ 4 cop _ be
3 我 _ PRON _ _ 4 nmod _ 1SG
4 男朋友 _ NOUN _ _ 0 root _ boyfriend
1 "He _ _ _ _ 0 _ _ _
2 is _ _ _ _ 0 _ _ _
3 my _ _ _ _ 0 _ _ _
4 boyfriend." _ _ _ _ 0 _ _ _
If the complement of the copular verb is a clause, however, then the copular verb should be the head of the sentence with the clausal complement as a ccomp dependent.
1 原因 _ NOUN _ _ 2 nsubj _ reason
2 是 _ VERB _ _ 0 root _ be
3 他 _ PRON _ _ 5 nsubj _ 3SG
4 沒 _ AUX _ _ 5 aux _ NEG.PERF
5 來 _ VERB _ _ 2 ccomp _ come
1 "The _ _ _ _ 0 _ _ _
2 reason _ _ _ _ 0 _ _ _
3 is _ _ _ _ 0 _ _ _
4 he _ _ _ _ 0 _ _ _
5 didn't _ _ _ _ 0 _ _ _
6 come." _ _ _ _ 0 _ _ _
For the cleft-like focus constructions with 是 and 是…的, see ccomp.
cop in other languages: [bej] [bg] [cop] [cs] [de] [el] [en] [es] [et] [eu] [fi] [fo] [fr] [fro] [ga] [gsw] [hy] [id] [it] [ja] [ka] [kk] [kpv] [ky] [myv] [no] [pcm] [pt] [ro] [ru] [sl] [sv] [swl] [tr] [u] [urj] [vi] [xcl] [yue] [zh]