Please explain the meaning of the following sentences if they are talking about the future:
Message as written on a card that is store in a wallet :
If you find this wallet, please return it to this address ...
If you found this wallet, please return it to this address ...
Also the difference between the 2 sentences below:
I would not be surprised if it was found that sleep deprivation was the root cause to many of today's society's trending diseases.
I will not be surprised if it is found that sleep deprivation is the root cause to many of today's society's trending diseases.
