宾语从句中主句将来时,一般现在时,和一般过去式,那么从句是什么时态的

从句遵循的基本原则是时态一致原则。所谓时态一致,是在把时态确定为三种基本时态的基础上的：过去时,现在时,将来时。比如主句用的某种过去时,从句也要用一种过去时。这是一般情况。具体到宾语从句中,主句用一般现在时,从句要根据在从句中的具体时态标志来确定时态。she tells me that she will come tomorrow。she tells me that she won the first prize yesterday。主句用一般过去时,从句要用与时态标志相对应的过去时态。比如从句中有过去具体时间或者没有具体时态标志,从句用一般过去时。she told me she won the first prize the day before。从句中有将来时间的标志,用过去将来时（would（will的过去式）+动词原形）。she told me she would won the first prize next day。从句中有完成时态的标志,用过去完成时。she told me she had been in beijing for 3 years。主句用将来时的很少。从句也用一般将来时。特别注意,无论主句是什么时态,如果从句句子表示的是一个不变的事实或者客观真理,用一般现在时。the teacher told us the earth goes around the sun。（地球绕太阳转是客观真理）