Linh spends two hours per day studying Japanese.

• Khẳng định: Linh spends two hours per day studying Japanese.
• Phủ định: Linh does not spend two hours per day studying Japanese.
• Nghi vấn: Does Linh spend two hours per day studying Japanese?

I often hang out with my friends on Sundays.

• Khẳng định: I often hang out with my friends on Sundays.
• Phủ định: I do not often hang out with my friends on Sundays.
• Nghi vấn: Do I often hang out with my friends on Sundays?

They are beautiful and kind.

• Khẳng định: They are beautiful and kind.
• Phủ định: They are not beautiful and kind.
• Nghi vấn: Are they beautiful and kind?

Her father works hard every day.

• Khẳng định: Her father works hard every day.
• Phủ định: Her father does not work hard every day.
• Nghi vấn: Does her father work hard every day?