1. They are coming to Manchester City on Monday
⇒⇒ They aren't coming to Manchester City on Monday.
2. We are going out tonight

⇒⇒ We aren't going out tonight.
3. He is leaving for Ha Noi tomorrow
⇒⇒  He isn't leaving for Hanoi tomorrow.
4. He is spending his next holiday at home
⇒⇒ He isn't spending her next holiday at home
5. He is finishing his work tomorrow
⇒⇒ He isn't finishing his work tomorrow.