Adjectives

Короткие слова (1 слог) → -er:
old → older slow → slower cheap → cheaper
nice → nicer late → later big → bigger
big → bigger hot → hotter thin → thinner
Слова, которые заканчиваются -y → -ier:
easy → easier heavy → heavier early → earlier
Rome is old, but Athens is older.
Is it cheaper to go by car or by train?
Длинные слова (2/3/4 слога) → more … :
careful → more careful polite → more polite
expensive → more expensive interesting → more interesting
I don’t like my job. I want to do something more interesting.
Is it more expensive to go by car or by train?
good → better bad → worse
The weather wasn’t very good yesterday, but it’s better today.

При сравнении в предложении обычно употребляется союз than – чем:
Athens is older than Rome.
Are oranges more expensive than bananas?
It’s easier to take a taxi than to take the bus.
‘How are you today?’ ‘Not bad. Better than yesterday.’
The restaurant is more crowded than usual.
We usually say: than me / than him / than her / than us / than them.
You can say:
I can run faster than him..
You are a better singer than me.
I got up earlier than her.