Chuyển thành câu điều kiện I could make a cake for you, but there aren't any eggs in the fridge now. These students worked hard, they passed the exam. Nam didn't have a camera, so he couldn't take pictures of his trip.

If 2:

If + S + were , S + would / could + V1 

If 3:

If + S + had + V3/ed , S + would / could + have + V3/ed

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1. If there were some eggs in the fridge now, I could make a cake for you.

2. If these students hadn't worked hard, they wouldn't have passed the exam.

3. If Nam had had a camera, he could have taken pictures of his trip.

`color{orange}{~MiaMB~}`