If I were lucky I might win the lottery
This is fine. Instead of might we can also say "could" .
But there are 3 kinds of conditional sentence.This is the second,hypothetical one.Is this the one you mean?
9 luglio 2015
2
1
Non hai ancora trovato le tue risposte?
Scrivi le tue domande e lascia che i madrelingua ti aiutino!