comment vs commentate

comment is a noun but commentate is not a noun.

Word	Noun	Adjective	Verb	Adverb
comment	Yes	No	Yes	No
commentate	No	No	Yes	No

comment (noun)	commentate (noun)
a statement that expresses a personal opinion or belief or adds information
a written explanation or criticism or illustration that is added to a book or other textual material
a report (often malicious) about the behavior of other people

comment (verb)	commentate (verb)
make or write a comment on	serve as a commentator, as in sportscasting
provide interlinear explanations for words or phrases	make a commentary on
explain or interpret something