Is it correct to say “I don’t think she does so”?
Example:

Liz: I have no clue, ask her.
Ray: I don’t think she does so.

Hope to find an answer asap! Thank you

Question

Is it correct to say “I don’t think she does so”?
Example:

Liz: I have no clue, ask her.
Ray: I don’t think she does so.

Hope to find an answer asap! Thank you

Answer

If Ray's response is intended to mean that he doesn't think that the other person Liz is suggesting he ask knows the answer, then it should be "I don't think she knows', OR, "I don't think she knows either" .

Answer

No! 
"I don't think she knows" or 
"I think think she does"