Quality: good. Quantity: some. Number: three. Demonstrative: this. Possessive: my. Interrogative: which. Distributive: each/every.

Positive: tall; comparative: taller; superlative: tallest. Avoid double comparison such as “more better”.

Use than with comparative forms. Use the with a superlative in ordinary usage: the best student.

A useful order is opinion → size → age → shape → colour → origin → material → purpose → noun.

Senior/junior/superior/inferior are normally followed by to, not than.