1. Khẳng định : They like to hang out during weekends.
Nghi vấn : Do they like to hang out during weekends ?
2. Phủ định : The Earth doesn't revolve around the Sun
Nghi vấn : Does the Earth revolve around the Sun ?
3. Phủ định : She doesn't only eat fish.
Nghi vấn : Does she only eat fish ?
4. Khẳng định : He drinks tea for breakfast.
Phủ định : He doesn't drink tea for breakfas.
5. Khẳng định : I know how to play piano.
Nghi vấn : Do you know how to play piano ?
6. Phủ định : Your exam doesn't start at 09:00.
Nghi vấn : Does your exam start at 09:00 ?
7. Khẳng định : London is a large city.
Phủ định : London isn't a large city.