I have a lovely dog.
He was the man who taught me English.
形容词子句who taught me English是名词man的修饰语。
The running man is my brother.
His English is very good.
He runs quite fast.
The sun rises in the morning.
介系词片语in the morning作动词rises的修饰语。
I am glad to meet you.
I haven't heard from him since he went to Taiwan.
副词子句since he went to Taiwan是动词
片语haven't heard from him的修饰语。
My father beat me only because I was late for school.
Evidently, he did not tell the truth.