Use can for future events?

MichaelLu2000

Member
Joined
Mar 4, 2019
Member Type
Student or Learner
Native Language
Chinese
Home Country
Taiwan
Current Location
Taiwan
Can we use "can" instead of "will be able to" for future events in type 1 conditional?
I think "will be able to" versions are grammatically correct, but I am not sure if "can" is also grammatical.

Here are some examples I came up with, and I think maybe the ones with "will be able to" are more "correct"

1a. If I buy some apples tonight, I can make some delicious apple juice tomorrow.
1b. If I buy some apples tonight, I'll be able to make some delicious apple juice tomorrow.
2a. If he buys some apples tonight, he can make some delicious apple juice tomorrow.
2b. If he buys some apples tonight, he'll be able to make some delicious apple juice tomorrow.
 
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