The conditionals aren't always easy. You've got a lot to think about.
Are you talking about a condition and result that has a real possibility of happening?
Are you talking about a condition and result that has NO possibility of happening?
Or
Are you talking about a condition and result that have already happened in the past?
The answers to these questions will determine what the grammar structure of your conditional sentence will be.
In this video, I talk about what these structures are and how to use them in your TOEFL writing.
If you master these conditionals, you may see your TOEFL score go up!