Student or Learner
Would you tell me the reason why (1) is possible and (2) is not?
(1) I don't think that he is rich.
(2) I don't know that he is rich.
EX: I don't know if he is rich or not. <subordinating clause>
EX: I don't think (that) he is rich. <clause>
Last edited by Casiopea; 23-Apr-2006 at 15:46.