Looking on the internet deeply has found these results:

I know any of them is the most popular phrase on the web.

I don't know some of them. 13,520 results on the web	I know any of them 1338,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Feb 8, 2015 ... Some of them I don't know. Some of them I do know. They just started picking anybody out of the neighborhood. They got me locked up with�... �Well, I don't know. Some of them gets on the police, and some of them learns people how to talk French.� �Well, I don't know. Some of them become policemen �... "Well, I don't know. Some of them gets on the police, and some of them learns people how to talk French." "Why, Huck, doan' de French people talk de same way�... "Well, I don't know. Some of them gets on the police, and some of them learns people how to talk French." "Why, Huck, doan' de French people talk de same way�...	It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

I don't know some of them.

13,520 results on the web

I know any of them

1338,000 results on the web

More popular!

Feb 8, 2015 ... Some of them I don't know. Some of them I do know. They just started picking anybody out of the neighborhood. They got me locked up with�...
�Well, I don't know. Some of them gets on the police, and some of them learns people how to talk French.� �Well, I don't know. Some of them become policemen �...
"Well, I don't know. Some of them gets on the police, and some of them learns people how to talk French." "Why, Huck, doan' de French people talk de same way�...
"Well, I don't know. Some of them gets on the police, and some of them learns people how to talk French." "Why, Huck, doan' de French people talk de same way�...

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.