If you burn wood, you get ash.
Zero conditional
If you (not call) me, I (not understand) this concept yesterday.
hadn't called, wouldn't have understood
It doesn't rain. I go to the park.
If it doesn't rain, I will go to the park.
He overslept. He missed the bus.
He wouldn’t have missed the bus if he hadn’t overslept.
If you had go earlier, I would become happier.
Incorrect
I don't have a lot of money. I don't travel much.
If I had more money, I would travel more.
If I had three million dollars, I would buy a penthouse.
Second Conditional
If I (be) you, I (help) him with his homework.
were, would help
If we have a yacht we sail the seven seas.
Incorrect
If he was rich, he would have bought a car.
Incorrect