WERE is the subjunctive* form of the verb BE.
* [ hypothetical situation ] talking about an unreal, or imaginary situation.
involving the combination of two or more conditions [ like "IF clauses" ]
If I were writer, I'd write about love and romance. ( I am not a writer )
If I were going to Paris, I'd take my camera. ( I am not going Paris )
≠
If I was faster, it's because my car is new. ( There's no how to be sure of it )
I may have been fast; I may not have.
If I was rude, I apologize. ( There's no how to be sure of it )
(I may have been rude. It depends on a person's point-of-view.
in the subjunctive case,
"WAS = WERE" in a colloquial speech,
but "WAS" in a text, because it's considered grammarly wrong
"They mean exactly the same thing, although "If I was" +
[hypothetical situation] is considered by many to be gramatically
incorrect and is not acceptable in more formal (particularly written)
contexts." (wordreference.com forum)
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ACT 01
ACT 02
for more ideas, check for MOODS OR MODES of the sentences....