most troubled
Comparative: more troubled Superlative:most troubled
the most troubled
more troubled and most troubled
war
The surface of the waters were troubled by the school of fish.
The comparative for the adjective troubled is either "more troubled" or "less troubled" - depending on how it compares.
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.
Tallest is the superlative.
superlative of quiet