Hmmm.. I just wonder how to use "without" in "Biz", "Siz", "O" and "Onlar"?

I know that :

-Bensiz : Without me

-Sensiz : Without you

And is :

-Osuz : Without him/her/it?

-Onlarsız : Without them?

-Bizsiz : Without us?

-Sizsiz : Without you?

i think its like you wrote. Just its not osuz but onsuz. Check here:

 http://www.turkishdictionary.net/?word=Without

 Çok teşekkür ederim ReyhanL

This was what i found...im also wating maybe a native to explain more.

 maybe only this thing:

(o - onsuz /onlar - onlarsız)

bu - bunsuz

bunlar - bunlarsız

şu - şunsuz

şunlar - şunlarsız 

But I know people from a region of ´karadeniz´ who use bular for bunlar, olar for onlar and şular for şunlar.

 in every country there are regions where the words sounds different, but we need to know the linguistic form af a language...my idea

 You are totally right, but because I read some posts lately that were about accents, I thought it was interesting to add that information to explain using n between o,bu,şu and the plural suffix -lar was not completely depended on the grammatical rules but perhaps a choice of the dominant accent.