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!
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Fast as a verb means to abstain from food or drink, usually for religious reasons.
The verb is talks.
Ran is the verb in that sentence>
The word fast can be any of these, although the noun and verb are homonyms and do not mean speed. fast (noun): a period without food (he took part in a fast) fast (verb): to go without food (she will fast overnight) fast (adjective): speedy (it is a fast plane) fast (adverb): quickly (driving too fast is dangerous) A noun is a person, place, or thing. For example: a cat ,the bank, Mr. Smith An adjective is a descriptive word. For example: stinky, nice, fluffy A verb is a word that describes you actions. For example: run, jump, think An adverb is a word that changes a sentence, verb, other adverb, or an adjective. For example: probably, easily, very.
Fasten is one verb for fast.Other verbs are fastens, fastening and fastened.Depending on the context, "fast" can also be a verb when relating to the religious practice of abstaining from food.
he is a busy person.
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.
quick
Ran is the verb in that sentence>
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.
is stay an action or linking verb
How fast is he/she running?
Fasted is a verb
adverb
Speeding
Fast can be used as an adjective, a verb, and an adverb. Adjective: That is a fast car. Verb: She fasted for five days to lose weight. Adverb: He drives fast. Fast can also be used as a noun. Example: She went on a five-day fast.