1,She dosent kown whether to stay or not .分析句子成分.

The question is (whether the movie is worth seeing).
句子主干是：the question is
whether 引导的句子,做the question is 的表语从句.whether是表语从句的引导词.
She doesn't know whether to say or not.
句子主干是she doesn't know.
whether to say or not是know的宾语.