Fresher and freshest
The superlative degree of stout is stoutest.
Cleanest is the superlative degree of the word clean. Cleaner is the comparative degree
"Fool" is a verb and a noun and, as such, does not have a superlative degree. The superlative degree of the adjective foolish is most foolish.
The superlative degree of word sincere can be most sincere ,or sincerest according to its use in the sentence.
most in
"Grant" is a verb and a noun and, as such, does not have a superlative degree.
The comparative degree is 'more magnificent' and the superlative degree is 'most magnificent'.
The superlative degree of word sincere can be most sincere ,or sincerest according to its use in the sentence.
Best.
finer, finest
greedier, greediest
The comparative degree of "fresh" is "fresher," used when comparing two items. The superlative degree is "freshest," used when comparing three or more items. These degrees are formed by adding "-er" and "-est" respectively to the base form of the adjective "fresh."