Quick, Speed
full
It can be either, because there is no adverb form (fastly) for speed.A fast car (adjective)He drove fast (adverb)
no, fast is an adjective.
great
gone,no more
Yes. Example: He bought a fast car. Fast is an adjective describing car.
The adjective in this sentence is "fast"; "really" acts as an adverb.
Speedy is a specific adjective
Sleepier is the comparative for sleepy. Sleepiest is the superlative.
Yes it is. An adjective is a word that describes a noun. For example, I have a fast computer.It can also be an adverb, as in "He runs fast."Another use of the adjective or adverb is to mean tight or tightly (held fast).In a separate usage, fast is a verb (to not eat, to abstain).
There is no adjective in that sentence. The word "fast" is sometimes used as an adjective, but in this sentence it modifies the verb "run," so "fast" is an adverb.
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