"I saw him jump."
Can you explain this sentence: "I saw him jump." "Jump" is clearly a verb and yet it doesn't follow the rules for verbs because its subject is in the objective form. So what is "him jump"? Simply a noun phrase? Please help because this is driving us nuts. The grammar books we have don't cover this anywhere.A:
(To see a related comment,
"See somebody DO something vs.
see somebody DOING something," click here.)