Verbs are the fuel to a sentence. A verb is the action taking place within a sentence. Without a verb, there is no complete thought; hence, no sentence. See examples of verb usage below from my playthrough of the phenomenal video game, Red Dead Redemption 2. MAKE SURE TO TURN ON "CLOSED CAPTIONS" TO VIEW VERB EXAMPLES.
Note: Look to the RIGHT of each clip to be aware of the game's ESRB Rating.