Younger is the comparative form. Youngest is the superlative form.
put
Comparative: more affectionate and more interesting Superlative: most affectionate and most interesting
For adjectives of three syllables or more, put "more" in front of them for the comparative and "most" for the superlative.
narrower, narrowest
"Less" is the comparative degree of little. The superlative degree is least.
comparative : purer superlative : purest
The comparative degree of cheerful is more cheerful.Its superlative degree, then, is most cheerful.
Comparative is wealthier and the superlative is wealthiest
Comparative is wealthier and the superlative is wealthiest
Comparative: fouler Superlative: foulest
The comparative degree is bigger.
The comparative degree is wider.
The comparative degree is 'more magnificent' and the superlative degree is 'most magnificent'.
comparative=more superlative=much
there is no such thing as the superlative and comparative degree of better because better is the comparative form for well or good and the superlative for good or well is best
tougher, toughest