Second conditional:

If I had a million dollars, I would quit my job and travel the world.If she studied harder, she would pass the exam with flying colors.If we had left earlier, we wouldn't have missed the train.If they were more careful, they wouldn't have crashed the car.If he were in charge, he would make some major changes to the company.

Third conditional:

If I had known you were coming, I would have baked a cake.If she had listened to my advice, she wouldn't be in this mess.If we had taken the other route, we would have arrived on time.If they had read the instructions, they wouldn't have assembled the furniture incorrectly.If he had invested in Bitcoin earlier, he would have made a fortune.