帮忙划分一下括号内的句子成分(即主语/宾语/谓语/表语/状语/补足语/同位语)

问题描述:

帮忙划分一下括号内的句子成分(即主语/宾语/谓语/表语/状语/补足语/同位语)
we are (students)
seeing is (believing)
time is (up),the class is(over)
the true is (that he has never been abroad)
顺便简单的帮我理清一下谓语表语状语补足语同位语
还有i'm a American boy 谓语是?

表语
表语
表语 表语
表语从句最后一个,帮一下
谢谢
还有第一个的are
谢谢i'm a American boy 谓语是am
we are (students)谓语是are