--Seth is a gifted athlete.
Seth=subject; is=linking verb; athlete=noun as subject complement
--Brandon becomes embarrassed when people compliment his skill.Brandon = subject; becomes = linking verb; embarrassed = adjective as subject complement.
--Brandon's face will turn red.Face = subject; will turn = linking verb; red = adjective as subject complement. [Will turn is linking because if you substitute this verb with an equal sign, the sentence still makes sense.]
--> It was he who caught the winning touchdown Friday night.It = subject; was = linking verb; he = pronoun as subject complement.
--Don't get mad at me! I didn't pull your ponytail! It was he.It = subject; was = linking verb; he = subject complement.
