if..+ tense

[Unregistered]

Hello teachers and other members,

could you please proofread the following sentences and tell me if there's a rule for this pattern.

1. If you could study in the UK, you must have had a lot of money (meaning you're rich)
2. If you could study in the UK, it means you must have had a lot of money
3. If you can study in the UK, you must have had a lot of money
4. If you can study in the UK, you sure must have had a lot of money.

Which sentence is the best to say that one is rich if he can go overseas for his education.

thanks,

 

[mmasny]

Hi.
None of them says that the person is rich. They all say that a person was rich in the past (or at least express an assumption that it was so).