1. We (to play) chess with Tomas yesterday. 2. Natalie (to stay) at the hotel. 3. She (not to know) my address. 4. They (to see) something interesting. 5. I (not to understand) those words. 6. You (to hear) the order. 7. Our parents (not to trust) doctors. 8. Helen (to have) an idea. 9. He (not to feel) any difference. 10. I (to know) it!

Exercise 1: Past Simple in affirmative and negative forms

Here are the sentences with the verbs in the Past Simple tense:

• 1. We played chess with Tomas yesterday.
• 2. Natalie stayed at the hotel.
• 3. She did not know (didn't know) my address.
• 4. They saw something interesting.
• 5. I did not understand (didn't understand) those words.
• 6. You heard the order.
• 7. Our parents did not trust (didn't trust) doctors.
• 8. Helen had an idea.
• 9. He did not feel (didn't feel) any difference.
• 10. I knew it!