Ann is not so intelligent as Mary,
John is not so strong as Peter,
I am not so tired as you are.
Alan is not so tall as David.
She is not so worried as her mother.
This game is not so interesting as that game.
This dish is not so tasty as that one.
They didn't play as well as usually.
***
Mary is as beautiful as Jane.
My flat is as big as my friend's.
My computer is as powerful (мощный) as yours.
My smartphone is as new as my brother's/sister's/friend's.
Run as fast as you can.
They could eat as much as they wanted to.