If I Was vs. If I Were: What's the Difference?

Quick Answer

if I was = real, possible past situations

if I were = subjunctive mood — hypothetical, unreal, or wishful situations

Explanation

IF I WAS (real/possible)

Describes a genuine past possibility, not known to be false

"If I was rude, I'm sorry." (maybe I was)

"If I was late, it wasn't intentional."

IF I WERE (subjunctive)

Hypothetical, imaginary, or contrary-to-fact

"If I were you, I'd quit." (I am not you)

"If I were rich, I'd travel." (I'm not rich)

Quick test: Is the situation impossible or clearly untrue right now (a wish, advice, a fantasy)? Use were. Is it a real, uncertain possibility — especially about the past? Use was.

Examples

If I were a millionaire, I'd buy a yacht. (hypothetical)
If I was asleep when you called, I didn't hear it. (real possibility)
If I were you, I would apologize. (advice, subjunctive)
She asked if I was coming to the party. (reported question, real)
If I was a bird, I would fly away.

Common Mistakes

Incorrect: If I was you, I would take the job.

Correct: If I were you, I would take the job. (hypothetical — you can never literally be "you")

Incorrect: If I were late this morning, I apologize.

Correct: If I was late this morning, I apologize. (real, uncertain possibility)

Practice

Choose the correct form:

"If I _____ taller, I would play basketball. If I _____ rude during the call, please forgive me."

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