Here we use a simple past in the if-clause and would + infinitive (bare form of the verb) in the result clause.
- If you asked, they would help you.
- If it rained, you would get wet.
- If you loved her, she would love you.
- If I had more money, I would buy a new car.
- If he studied more, he would pass the exam.
- If I were the President, I would lower taxes.