> 
> 1. Our school had won the match if only we have concentrated.
> 2. Our school would have won the match if only we would have concentrated.
> 3. Our school would win the match if only we had concentrated.
> 4. Our school had won the match if only we would have concentrated.
> 5. Our school would have won the match if only we had concentrated.
> 
> 
> 

Tell me which one is correct.