조동사 + not + be + ~ing — I won't be coming to your birthday party next week because I don't have time anymore.
Sentence
I won't be coming to your birthday party next week because I don't have time anymore.
Pattern structure
I shouldn't/can't + be + 동사ing
Context
🎉 친구가 파티에 올 수 있는지 물어봅니다. 이번에는 못 가요!

