The neglected little verb has the power of clearly expressing what the subject does or what's done to it. Depending on the writer's selection, a verb may be powerful, merely adequate, or totally inept. The problem is, most people don't consciously choose verbs. The subject gets all the attention while the verb suffers in obscurity. In script writing, verb choice becomes very significant.
Powerful verbs increase the script's pacing, while weak verbs decrease pacing.
Any verb that fails to imply an action is a weak verb. They merely describe a state of being. A script filled with such weak verbs moves along at a snail's pace. If the objective is to put the audience to sleep, use lots of them. They'll sprint through the listener's mind like trained athletes.