It is about conditional ''if only''.
Is it okay to say '' if only I won $ 1 million lottery, I would buy you a nice car '' ?
Why '' if only I won $ 1 million lottery'' cannot be followed by a clause ( I would buy you a nice car )
Has anyone heard 'wan' here?? Somehow, I'd like to say 'wan'. An old form perhaps??
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.
From my schooldays, many years ago, I can remember "win, wan, won".
I suppose it's the German influence: win = gewinnen, past tense gewann
That sounds extremely old for your school days. Never heard it.