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"Perfect" can be either a verb or an adjective: "His hair was perfect!" {adjective} "You need to perfect this poem before submitting it for publication. {verb}
perfect is an adjective perfection is a noun perfected/ perfecting/ will perfect/ perfects are verbs perfectly is an adverb
Perfect can be an adjective and a verb. Adjective: e.g. fitting its description precisely. Verb: to make perfect/to improve.
No, it is an adverb. It is the adverb form of the adjective perfect.
The adjective for energy is "energetic."
The adjective form of "energy" is "energetic."
The adjective for the word energy is energetic.
Effective.
Yes, it is.
Strenuous is an adjective. Strenuous means requiring or using great exertion.
"Perfect" is most often an adjective, sometimes a verb, and rarely a noun. It is not a preposition.
perfect used as an adjective instead of a verb