Question

英语语法，非谓语和谓语

he pretended to be doing his homework when his father came in. 哪个是谓语，哪个是非谓语，pretended是谓语吗？

Answer 1

划分句子成分可以帮助解决你的问题
【He主语】【 pretended一般过去时的谓语动词】【 to be doing his homework 不定式短语作宾语】【when（ his father从句主语）（ came in 谓语） 时间状语从句】.

可见，pretended是主句的谓语，to be doing his homework 不定式短语，是非谓语动词短语。

祝你开心如意！

追问

to be doing是非谓语，加上his homework就变成非谓语动词短语是吗？也就是说非谓语后面也能加它自己的宾语是吗？所以这个短语做了pretended的宾语是吗？

追答

你理解的很准确！
祝贺你！

Answer 2

yes, 'pretended' 是主谓语， 'came' 是从句中的谓语。