Fun is used as an adjective, but it is considered informal. (e.g. a fun time)
Fun is a noun.
Yes, you can change patience into an adverb. The adverb is "patiently."
"Happily" is the adverb. As with several other words, you change the final "y" of the basic word to "i" before adding the suffix.
The adverb of funny is funnily or funny.
To change "sizzle" into an adverb, you can use "sizzlingly." For example, "The bacon sizzled sizzlingly in the pan."
The word 'good' in the phrase 'good fun' is an adjective describing the noun 'fun'.
peacefully
"Funner" is not a proper word. Even if it were, if it was meant to mean "more fun", then it wold not be a verb nor an adverb.
No. Changed is a past tense verb, and the past participle of "to change." It is also used as an adjective.
Adding "ly" is the most common way to change an adjective like "merry" into an adverb. So, that would give "merryly". However, in this case we change the "y" into "i" as well. So, that gives "merrily" as the adverb.
By removing the s.
Examples of verbs to use with the noun fun are:have funis funwas funbring fun
Completely is already an adverb. Removing the -ly puts it in adjective form.