Verb in go form can be formed 2 different ways. First is to add the -고 to the negative verb as shown below:
- 사지 않고 (saji anko) does not buy
- 사지 못 하고 (saji mot hago) can’t buy
- 가지않고 (kaji anko) does not go
- 가지못 하고 (kaji mot hago) can’t go
The second way is to put -고 to the right after the verb that has been negated the short way:
- 안 사고 (an sago) does not buy
- 못 사고 (mot sago) can’t buy
- 안 가고 (an kago) does not go
- 못 가고 (mot kago) can’t go
Here is an example: 점심을 안 먹고 학교에 빨리 갔어요. (Cheomshimeul an meokko hakyeoe palli kasseoyo). He did not eat lunch and then hurriedly went to school.