Is the following sentence linguistically acceptable?
Harriet told Emma the whole story.

acceptable

Is the following sentence linguistically acceptable?
Bill floated into the cave for hours.

unacceptable

Is the following sentence linguistically acceptable?
Agamemnon seems PRO to be a maniac

unacceptable

Is the following sentence linguistically acceptable?
I know which guys you've dated, but I don't know which guys you haven't.
acceptable