1. The ship has four holds.
Does the ship have four holds?
The ship doesn't have four holds.
2. We must be at the lessons in time.
Must we be at the lessons in time?
We mustn't be at the lessons in time.
3. The crane is on the quay.
Is the crane on the quay?
The crane isn't on the quay.
4. They come in the office at 8 o’clock in the morning.
Do they come in the office at 8 o’clock in the morning?
They don't come in the office at 8 o’clock in the morning.
5. She plays chess very well.
Does she play chess very well?
She doesn't play chess very well.