Dưới đây là cách chia động từ "not be" trong ngoặc:

1. I (not be) wasn't late for class yesterday.
2. They (not be) aren't at the park now.
3. She (not be) wasn't at the meeting last week.
4. We (not be) weren't on vacation last summer.
5. He (not be) wasn't in the mountains yesterday.