If ______ I would not lose temper.

1. I were you
2. I was you
3. I am not you
4. I am you

Explanation: First Conditional Sentence এর নিয়ম অনুযায়ী, If clause টি present indefinite tense এ হলে, main clause টি future indefinite tense এ হবে। অর্থাৎ If + present indefinite tense, + future indefinite tense.
Or, Future indefinite tense + if + present indefinite tense. যেমন- a) If a ruby is heated, it will temporary lose its colour. b) Rokeya will be dismissed from her post if she is late again