Can you use stupefy as a verb?

You never chose whether or not you are going to use a verb or irregular verb. Look at what you are trying to say, then pick the verb that fits the sentence. The verb may or may not be irregular.

its a doing word... idiot

It is a linking verb, it links a subject and a thing connected with that subject..

A verb is an action word; it propels the sentence; The boy runs down the hill. "runs" is the verb.

For can be a preposition - two main uses: length of time and purpose. length of time: for three hours, for weeks, for ever. I have been studying English for five years. - present perfect continuous...