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

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

i don't konw if my father __(come)will come 还是comes
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.