Present simple:
1. I read an interesting book.
2. We usually go shopping on Saturday .
3. She doesn't work in a big company.
4. They play hide and seek.
5. You don't understand it.
6. Do I need to do this?
Present continous:
1. I am making a decision.
2. Is he watching TV?
3. You aren't buying this shirt
4. She is talking too much.
5. We are making a smoothie.
6. They aren't paying attention.
Past simple:
1. We made some pancakes.
2. Did she ask?
3. I didn't do it.
4. You wrote that letter.
5. They disappeared.
6. He hated math.