Is it OK to use "can" in the if-clause of Type 1 conditional sentences?
I'll try to find the audio files later. If I can't find them I'll record everything for you.
Is this sentence grammatically correct?
I will try to find the audio files later. If I can not find them, I will record everything for you
You can use can\ not or do\not in the if clause Type 1.There is no rule that prohibits the use of can in the probable condition.