【病句诊断】

He complained of that his wife is too lazy。

【辨析讲解】

Complain后面接名词的话不及物东西，后面接宾语就要用上介词of或者是about。后面接接宾语从句，它是及物动词，就不需要用of或者是about了。

【诊断结果】

He complained that his wife is too lazy.

【考考你】

What do you complain?