There is nothing more perfect than perfect, hence, there is no superlative for perfect. Same goes for 'unique'. It means, "One of a kind", and you cannot get more 'one of a kind' than 'one of a kind'. No superlative for 'unique', either.
positive degree=few comparative degree=fewer superlative degree=fewest
Sum is a noun and a verb and, as such, does not have a superlative degree.
The comparative degree is bigger.
The comparative degree is wider.
There is nothing more perfect than perfect, hence, there is no superlative for perfect. Same goes for 'unique'. It means, "One of a kind", and you cannot get more 'one of a kind' than 'one of a kind'. No superlative for 'unique', either.
the superlative degree of much is most
No, the superlative degree is "most tirelessly."
The superlative degree of "old" is "oldest."
Kindest is not a verb. It is the superlative degree of Adjective Kind, kinder being the comparative degree.
The superlative degree of stout is stoutest.
The superlative degree of "broad" is "broadest."
"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.
"Less" is the comparative degree of little. The superlative degree is least.
Thinnest is the superlative degree of thin.
most often is the superlative degree for often
Cleanest is the superlative degree of the word clean. Cleaner is the comparative degree