He argues that why must the verb usage of "to have" mean sexually possess?

Noun usage is slightly less regular than verb usage.

Verbs can also be used as adjectives (e.g. "The astonished child watched the spectacle unfold" instead of the verb usage "The unfolding spectacle astonished the child").

Correct verb usage?

I can tell you it's the subject of great discussion among language experts, who seem to have settled on the notion that the verb usage of "to fly" in baseball is different than the usage of "to fly" for a bird.

(see for verb usage of: "May She Live") (softcover, ISBN 0-292-79804-0)

An example of an impersonal verb usage is in the common verb es in Es verdad que estoy loco.

For information on the conjugation of regular verbs in English, as well as other points concerning verb usage, see English verbs.

As the verb usage with 'libation', water or liquids are involved.

From that sense came its colloquial verb usage, to dish it out, meaning not just "to serve" but also "to administer punishment."