(a) The idea is that, whatever
action the verb expresses, the
subject carries out that
action and the direct object
receives
it. The problem is that the word
action is not broad enough to
cover everything that every transitive verb might express.
Action is adequate in describing
hit in "He hit the ball."
Hitting fits the definition of an action. But one does not readily think of
forgetting and
having as actions. For grammatical purposes, broaden your definition of
action to cover whatever
happening a transitive verb expresses.
-Rulon did forget what? His new title.
-Chris has what? A new digital camera.
(b) Yes, a transitive verb is one that has an object, and an intransitive verb is one that does not.