Yes, one should make sure that the subjects and verbs agree
The predicate is the part of a sentence containing a verb and telling something about the subject. Example of a sentence with a predicate:
Josie likes to play soccer.
Subject: Josie
Predicate: likes to play soccer
D, he is smart but he does not want the others to tease him. I guess he does not want them to think he is a nerd.