if I were ... (hypothetical)
Triggers imperfect subjunctive.
If I were rich, I would travel the world.
If I were you, I wouldn't think twice.
—What would you do? —If I were a teacher, I would teach history.
If I were rich, I would travel the world.
If I were you, I wouldn't think twice.
—What would you do? —If I were a teacher, I would teach history.