I sub nyo naman si kristian ph at si koyabuttons at si mc hero

Asimple subject is the one who is talked about in a sentence. it only focuses on the main subject no other "impurities."that is what i call it.
ex:
the girl is walking stupidly. the simple subject is "girl."
a simple predicate is the one who describes the subject. usually, it is a verb.
the girl is walking stupidly. the simple predicate is "is walking."