This is the 3996th most frequent Korean word.
은행들이
"Banks" (plural form).
In this sentence, '은행들이' is the subject and refers to multiple banks collectively performing the action of providing benefits.
은행들이 고객들에게 혜택을 제공합니다.
The banks provide benefits to their customers.
Here, '은행들이' represents the plural form of banks as the entities responsible for the change in working hours.
은행들이 업무 시간을 변경했습니다.
The banks changed their working hours.
In this instance, '은행들이' is the subject referring to multiple banks and emphasizes their ongoing action of contributing.