I checked up on this today, so thought others might find this useful:
Orange Crate Art: If I were, if I was
Orange Crate Art: If I were, if I was
"If I were" (the past subjunctive) is appropriate in stating conditions that are contrary to fact:If I were a bell, I'd go ding dong ding dong ding. (Frank Loesser)Each of the above sentences states a condition that is not the case: I'm not a bell, not a carpenter, not a rich man.
If I were a carpenter and you were a lady, would you marry me anyway? (Tim Hardin)
If I were a rich man, [yadda, yadda, yadda]. (Sheldon Harnick and Jerry Bock)
"If I was" (the past indicative) is appropriate in stating conditions that are not contrary to fact. Here you might say that the truth or falsity of the condition is not certain.