We can show that two things are not equal
not + as + adjective + as
When we use this structure, the first thing mentioned is 'less' than the second thing. The order of the things you are comparing is opposite to that used in comparisons with comparative adjectives.
Examples
- This one isn't as big as the old one.(The old one is bigger than this one.)
- Jenny's new flat isn't as nice as her old one.(Jenny's old flat is nicer than her new one.)
- Paris isn't as big as Tokyo(Tokyo is bigger than Paris.)
Contractions
You can contract the subject, the verb to be and not in two ways. There is no difference in meaning:
- It isn't as big as...
- It's not as big as...
We use not the same as or not the same + noun + as to show that two things are not the same.
- Tom’s weight is not the same as Bob’s weight.
- The atmosphere in this restaurant is not the same as it is in Japan
- This restaurant does not have the same atmosphere as a sushi restaurant in Japan.
- Today, we don’t have the same weather as we had yesterday.