Sum is a noun and a verb and, as such, does not have a superlative degree.
"Studying" is not a superlative, as it is not an adjective. "Most studious" is a superlative of "studious."
Superlative the silly
What is the comparative and superlative of Often
purer and purest
the superlative of smart is smartest
Remember in English Grammar we have ' Dative, Comparative, and Superlative adjectives. I found the last sum in this exercise most (superlative) difficult than the other sums .( superlative )10. Mr. Biswas is the most respected member on the staff Dative ; I found the last sum in this exercise difficult than the other sums . ( Comparative ; I found the last sum in this exercise more difficult than the other sums. Superlative ; I found the last sum in this exercise most difficult than the other sums
Sleep is a noun and does not have a superlative. Sleepy is an adjective and the superlative is "sleepiest."
The superlative for willing would be "most willing." There is no one-word superlative.
"Studying" is not a superlative, as it is not an adjective. "Most studious" is a superlative of "studious."
"Bib" is a noun and, as such, does not have a superlative form.
most superlative is the superlative form of superlative
Tallest is the superlative.
superlative of quiet
bigger is the comparativebiggest is the superlative
smallest is the superlative. (est is the standard superlative ending._
The superlative of clear is clearest.
The superlative of chunky is chunkiest