Compare: a pool - a river
Adjective: long
A river is longer than a pool.
a gorilla / a chimpanzee / an orangutan
small
A chimpanzee is the smallest monkey.
My computer is fast. Your computer is fast too.
(as ... as)
My computer is as fast as your computer.
This chocolate cake is as delicious than that apple pie.
incorrect: than
This chocolate cake is as delicious as that apple pie.
Fries are _________ (expensive) than Sushi.
less expensive
Compare: a wart / hemorrhoids
Adjective: hideous
A wart is more hideous than hemorrhoids.
Hemorrhoids are more hideous than a wart.
a hippo / a rhino / a lion
aggressive
A hippo is the most aggressive animal.
This sofa is comfortable. This bed is comfortable.
(as ... as)
This sofa is as comfortable as this bed.
I usually drive more faster than you.
incorrect: more
I usually drive faster than you.
The small Pacific nation called Nauro is the world's ________ visited country.
the least
Compare: bats / rats
Adjective: scary
a flea / a parasite / an ant
tiny
A parasite is the tiniest (of the three).
Nancy plays the guitar well. John plays the guitar well.
(as ... as)
Nancy plays the guitar as well as John (does)
This article is the less interesting than I have ever read.
incorrect: the less interesting than
This article is the least interesting I have ever read.
less efficiently
Compare: losing hair / losing teeth
Adjective: bad
Losing hair is worse than losing teeth.
good
Summer is the best season.
My cellphone is less nice than yours.
(not as .... as)
My cellphone isn't as nice as yours.
This tea tastes very different than the one I usually drink.
correct
different from / to / than
The customer service of this store is __________ (helpful) ever.
the least helpful
Adverb: quickly
Planes travel more quickly than trains.
Brenda / sing / all the girls
beautifully
Brend sings the most beautifully of all the girls.
This phone is not as expensive as this computer.
(less... than)
This phone is less expensive than this computer.
Smartphones have the functions same than computers.
incorrect: same than
Smartphones have the same functions as computers.