GRAMMAR, PLAINLY.
NOUNS & ADJECTIVES → COMPARISON · RULE 17

Comparison

Short adjectives grow endings: warm → warmer → warmest. Long ones call helpers: more beautiful, the most beautiful.

FORMULA
-er / more
warmwarmerthe warmestshort: add the ending
bigbiggerthe biggestdouble the consonant
happyhappierthe happiest-y → -i
beautifulmore beautifulthe most beautifullong: call the helpers
THREE STEPS
1
Rome is warm.
the adjective
2
Madrid is warmer than Rome.
comparative + than
3
Athens is the warmest of the three.
the + superlative
The superlative almost always brings the: the best, the biggest, the most famous.
WHICH ROAD?
1 syllable → endingold → older
2+ syllables → more / mostmodern → more modern
-y counts as shorteasy → easier
THE FAMOUS FOUR
good → better → the best
bad → worse → the worst
far → further → the furthest
little → less → the least
COMMON MISTAKES
It is more better.→ It is better.never more + -er
She is taller from me.→ She is taller than me.compare with than
the most easiest way→ the easiest wayone superlative only