Question

2 comparative adjectives
2 superlative adjectives
2 comparative or superlative adjectives that are exception(irregular form)

Answer 1

Não sei se entendi muito bem, mas ok.

2 comparative adjectives:
-prettier than
-better than

2 superlative adjectives:
-the biggest
-the largest

2 comparative/superlative irregular adjectives:
-the best
-worse than