Get is a verb and does not have comparative or superlative degrees.
Most vertical is the superlative, and more vertical is the comparative.
Shape is a noun and a verb and, as such, does not have a comparative or a superlative degree.
thicker, thickest
comparative: thicker superlative: thickest
hollower, hollowest
the superlative degree of much is most
No, the superlative degree is "most tirelessly."
The superlative degree of "old" is "oldest."
The superlative degree of stout is stoutest.
The superlative degree of "broad" is "broadest."
The superlative degree of heavy is "heaviest."
"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.
most often is the superlative degree for often
Thinnest is the superlative degree of thin.
The superlative degree of "splendid" is "most splendid."
Cleanest is the superlative degree of the word clean. Cleaner is the comparative degree