It can be. "The show must go on" or "We are going to move on."
It is an adjective in "The switch is on."
But usually "on" is a preposition, followed by an object. "I saw the bug on the table."
There isnt one but there is an adverb clause
Yes one of the two is an adverb, the other is a verb.
No. Perseverance is a noun. There is a rarely used adverb form "perseveringly" which is synonymous with one meaning of the adverb persistently.
One adverb (rarely used) is agreeingly.An adverb more frequently used is agreeably, from the related adjective agreeable.
You would have to use one of the adverb forms "thoughtfully" or "thoughtlessly."
One adverb of deceive is deceivably.Another adverb of deceive is deceivingly.
One of the adverb forms is productively (there is no adverb producely or producibly).
There isnt one but there is an adverb clause
One adverb of embarrass is embarrassingly.Another adverb of the word is embarrassedly.
An adverb is one of the eight parts of speech.
One adverb for suggest is "strongly."
Nearly is an adverb, not part of one.
No, forget is a verb. One adverb form is forgetfully.
No. Berries is a plural noun, more than one berry. There is no formal adverb for berry.
No,it is not an adverb. Complaint is a noun, related to the verb complain. One adverb form could be "complainingly."
No, it is not an adverb. Finance is a noun, or a verb. One adjective form is "financial" and the adverb form is "financially."
The adjective decorated does not form an adverb. One derivative adjective that does is decorative, which forms the adverb decoratively.