1.Use present factual conditional sentences to talk about general truths and scientific facts.
*If it's noon in Taipei, it's 2:00 P.M. in Brisbane.
2. You can also use present factual conditional sentences to talk about habits and recurring events (things that happen again and again).
* If John is traveling far, he always flies.
3.You can also use modals in the result clause.
*You might learn more if you listen to Japanese tapes.
4. Use the imperative in the result clause to give instructions, commands, and invitations that depend on a certain condition.
* If you come to Melbourne, stay with us.