"Grumpy" is an adjective, not a noun or a verb. It is used to describe someone who is irritable or easily annoyed.
The adjective form is irritation.
The word irritable *is* an adjective. It is a derivative of the verb "to irritate."
Irritable Bowel Syndrome.
what is the form of the verb answer it ..............
The verb form of 'nonconformity' is 'non-conform'. It is an intransitive verb.
The verb form of "involvement" is "involve."
The verb form of commentary is "commentate."
The verb form of intensity is intensify. As in "to intensify something".
A verb form for the word "dignity" is "dignify."
The verb form of 'furniture' is 'furnish'.
Condemn is the verb form.