This bag is bigger than that bag.
Grammar · A1
Comparative adjectives
Look at two things and say how they are different.
My bag is bigger than yours.
01 · The idea
Look. Compare these examples.
Look at two things and say how they are different.
The red bag is more expensive than the blue bag.
This cake is better than that cake.
02 · More examples
Look at what changes.
Many short words add -er: small → smaller. Put than before the second thing.
This bag is bigger than that bag.
Ana is older than Ben.
This box is heavier than that one.
With many longer words, put more before the word: expensive → more expensive. Keep the word unchanged.
The red bag is more expensive than the blue bag.
This book is more interesting than that one.
Say cheaper, not more cheaper.
Good → better. Bad → worse.
This cake is better than that cake.
The weather is worse today.
Your idea is better than mine.
Look a little closer
Look at the word pair
Use the whole pair to check the ending. Keep than before the second thing.
wide → wider; big → bigger; hot → hotter
happy → happier; easy → easier; heavy → heavier
This street is quieter than that one. More quiet than is also possible.
03 · Build a sentence
Make a choice. See what changes.
Change one choice at a time. Watch the sentence blocks.
The red bag is bigger than the blue bag.
Which bag first?
What do you compare?
04 · Try it together
Choose the correct answer.
Quick check 1
A giraffe is ___ than a cat. (tall)
Compare two things. Think big/bigger, heavy/heavier and cheap/cheaper.
Quick check 2
This camera is ___ than mine. (expensive)
Does this describing word need more, as in more expensive?
Quick check 3
This cake is ___ than that one. (good)
Think of the special pairs good/better and bad/worse.
05 · Real-life English
Use it in a conversation.
A: The red bag is bigger than the blue one. B: Yes, but the blue bag is cheaper. A: I only have ten pounds. I'll take the blue one.
Compare two things you can see. Choose one and give a reason.
A: Do you want to walk or take the bus? B: The bus is faster than walking. A: Walking is cheaper. Let's walk.
Compare two ways to get to a place. Think about time and price.
06 · Common mistakes
Which sentence is correct?
07 · Keep this
The lesson in three small steps.
A big bag. A bigger bag.
This bag is bigger than that bag.
More expensive than
This bag is more expensive than that bag.
Better. Worse.
good → better; bad → worse
08 · Practice
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