This is the 190th most frequent Korean word.
수는
"수는" means "number is" or "as for the number" in English, depending on the context.
In this sentence, '수는' is used as part of the phrase indicating one's capability or possibility (수). The '는' is an emphasizing topic particle here.
그는 사고를 막기 위해 최선을 다할 수는 있다.
He can at least try his best to prevent the accident.
Here, '수는' is part of emphasizing that the task is doable by the individual, with '수' representing the concept of possibility and '는' highlighting this aspect.
이 일을 수는 할 수 있지만 시간이 걸립니다.
I can do this task, but it takes time.
The usage of '수는' indicates the speaker's acknowledgment of their capability (수) to handle the problems, with '는' employed for emphasis.