The verb is talks.
it is used to describe a verb usually after the verb or sometimes before it for example: He runs fast. Fast is the adverb that describes the verb, runs.
Ran is the verb in that sentence>
quick
The future tense of the verb form of "fast" is will fast.
The monk was told to fast before mattins. The cheetah ran too fast for him to catch.
Fast is an adjective.It can be used to describe people/objects/animals.That car is fast!I can run really fast!Cheetahs move fast!---Fast as a verb means to abstain from food or drink, usually for religious reasons.
is stay an action or linking verb
How fast is he/she running?
Fasted is a verb
adverb
Speeding