1. I have a previous engagement.
2. I was unable to attend because of a previous engagement.
3. I am unable to attend because of a previous engagement.
4. He cannot go for he has a previous engagement.
5. Since you have a previous engagement, why didn 't you say so?
6. Owing to a previous engagement, I shan't be able to come.
7. Mrs Spratt regrets that she is unable to attend owing to a previous engagement.
8. I can't see you on Monday because I have a previous engagement.
1. I have a previous engagement.
2. Mrs Spratt regrets that she is unable to attend owing to a previous engagement.
3. I was unable to attend because of a previous engagement.
4. I can't see you on Monday because I have a previous engagement.