i don't konw if my father __(come)

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i don't konw if my father __(come)
will come 还是comes
为什么?请帮忙说明理由宾语从句主句时态和从句保持一致?

will come if 在这是是否的意思等于whether!
if和whether引导的从句时态遵循规则：
1.当主句是一般现在时,从句可根据需要用任意时态.
The teacher wants to know if/whether the students are studying in the classroom now.
The teacher wants to know if/whether the students have finished their homework.
The teacher wants to know if/whether the students were playing football yesterday afternoon.
2·主句用过去时,从句用过去时态的一种.
He asked whether /if Tom would come to his party.
The mother wondered whether /if his son had finished his homework.
3·主句用过去时,从句是真理时,只用一般现在时
He asked whether /if the earth goes round the sun.
if,whether在宾语从句中的区别
1.介词后的宾语从句只能用whether引导,不能用if引导.
They are talking about whether they will be paid very soon.
2.whether后可以加or not,但是if不可以.
3.在不定式前只能用whether.
He doesn't know whether to help her.

i don't konw if my father __(come) i don't konw if my father __(come) If you don' t my father,I want to play i don't konw if or not he likes my MP4 player 哪里错了? I don't konw I don‘t konw I don't konw . I don't konw,if I love you really. I don't konw whether/if i should believe 英文男声 i don't konw if this is you 改为同义句：Don't come to my office if I don't telephone you I don't konw when exactly they will come.P_,they will come t