I don't know if it------tomorrow,but if it-----,I'll go swimming

问题描述:

I don't know if it------tomorrow,but if it-----,I'll go swimming

Raining sunny

我明白只要有你我就离幸福不远

I don`t know if it will rain tomorrow,but if it doesn`t rain,I`ll go swimming.
这是在初中阶段很经典的一句话~~~

will be fine...is fine

I don't know if it will rain tomorrow,but if it should not rain,i'll go swimming

第一个if是“是否”的意思,后面用将来时,第二个是“如果”的意思,后面一般用一般现在时或过去时,不能用将来时
给个例子I don't know if it will be sunny tomorrow,but if it is sunny,I'll go swimming.