“是”字句（2） the “是”sentence (2)

We have already learned the “是”sentence; for example “我是马大为”。 Its subject and object are nouns or pronouns. The function of the “的” phrase is equivalent to that of a noun; thus it can also serve as the subject and the object of a “是”sentence.

S+ 是+ N/A/Pr/Vp + 的