using twice as

[Khalid79]

Dear Techers ,

please correct my sentences :

now i have to spend twice as much time as i used to spend before.
our new shpo now is twice as big as ( than) it was before.
i'm offered now twice as much salary as i was paid when i came here.

thanks in addvance

[David L.]

now i have to spend twice as much time as i used to spend before.
Now I have to spend twice as much time as I used to.

our new shpo now is twice as big as ( than) it was before.
Our new shop is now twice as big.
'twice as big' implies 'as it was before the expansion.
compare:
Our new shop is now twice as big as our competition across the street.

i'm offered now twice as much salary as i was paid when i came here.
perhaps
I'm now offered twice as much salary as I was paid when I came here.
better
I'm now offered twice as much salary as when I started working here.
even better, if you mean as I think you do:
I'm now earning twice the salary as when I started working here.
and even
I'm now earning twice my starting salary here.
- which is much less a mouthful/is more succinct.