Comparatives Use -er to compare one syllable adjectives and adverbs as well as two-syllable adjectives ending in -y.
A horse is bigger than a dog.
He is shorter than his brother.
I'm busier today than I was yesterday.
I can run faster than you can.
My house is smaller.
It's the lesser of two evils.
less to compare most other adjectives and adverbs.
She is more helpful than her sister.
Mr. Gallant is more courageous than his cousin.
Craig is less practical than Kay.
Celine sings more beautifully than Barbara.
For better or worse
Use better and
worse for comparisons with
That's a good movie, but this one is
Actually, I think that one is
as . . . as to show similarity
He's as quick as his brother.
This chair is not as comfortable as that one.