It's comparative if there can be a quality more or less than it, it's superlative if there can't be.
Dative; Early Comparative; Earlier Superlative; Earliest
Comparative is more and superlative is most.
Dative :smart Comparative; Smarter Superlative; Smartest
Dative; Short Comparative; Shortert Superlative; Shortest
comparative: trustworthier. superlative: trustworthiest.
comparative : purer superlative : purest
Dative; cloudy Caomparative; cloudier Superlative ; cloudiest
Comparative: older Superlative: oldest
The comparative and superlativeforms of grand are: Comparative: grander Superlative: grandest
Dative; Early Comparative; Earlier Superlative; Earliest
comparative - merrier superlative - merriest
comparative = sadder superlative = saddest
Comparative: shallower Superlative: shallowest
The comparative is "stricter" and the superlative is "strictest".
The comparative is greater and the superlative is greatest.
Comparative is more and superlative is most.
comparative straighter and the superlative the straightest