请问这句话用英语怎么说?请问其中,有些信件不是Tom的.用英语怎么说?"不是Tom的",是说,有的不是给Tom的,有的不是Tom写的,都包括.

Excuse me
Among them, some of the letters not Tom.
How to say it in English?
"Not Tom", it is said, some not give Tom, some not Tom wrote

not all the letters are for tom

Not all letters are Tom's.

All letters are not Tom's.（of Tom）
Not all letters are Tom's. (of Tom） ^0^