No, it is a verb phrase. You could add an adverb to it, as in "should have seen CLEARLY."
Yes, you can change patience into an adverb. The adverb is "patiently."
The adverb form of the adjective impatient is impatiently. It means in an impatient or anxious manner. (Almost never seen is the double-negative adverb unimpatiently which means patiently)
No, it is an adjective. The adverb form is beneficially.
No, it is not an adverb. Became is the past tense of the verb become.
Yes, it is an adverb. It is the adverb form of "ready" and means quickly and easily.
Seen is not an adverb, no.The word seen is a verb.
Yes, it is an adverb. It is the rarely-seen adverb form of the adjective sticky.
The word 'never' is an adverb modifying the verb seen.
No. It is not an adverb. Seen is the past participle of the verb "to see" and can be an adjective.
The noun or adjective "epidemic" has the rarely-seen adverb form epidemically.
The noun or adjective "epidemic" has the rarely-seen adverb form epidemically.
No, it is an adjective. The rarely seen adverb is freakily. The similar adjective freakish (like a freak) has the common adverb form "freakishly."
The adverb is always, it is an adverb of frequency
"had never seen" is the verb phrase in the sentence. It consists of the main verb "seen" and the auxiliary verb "had" indicating past tense and a negative adverb "never."
The adjective related to the noun cloud is cloudy. The seldom seen adverb form is cloudily.
The word leading is a verb form and a gerund (noun). It can be used as an adjective, but not an adverb. The rarely seen adverb form is "leadingly."
Yes, it is the adverb form of the adjective invisible (unseen). It means done in a way that is not seen, or not noticed.