tom3m
Senior Member
- Joined
- Mar 6, 2011
- Member Type
- English Teacher
- Native Language
- Czech
- Home Country
- Czech Republic
- Current Location
- Czech Republic
I have a question about this sentence: I must be going. I do not understand why there is the verb to be + present continuous form. I have thought that only infinitive can be used after must. Can you explain the difference if any.