This is the 4486th most frequent Korean word.
휠체어가
"휠체어가" means "wheelchair" in English.
Here '휠체어가' is the subject of the sentence indicating the item needed.
휠체어가 필요해요.
A wheelchair is needed.
Here '휠체어가' is the subject of the sentence referring to the item that has malfunctioned.
휠체어가 고장났어요.
The wheelchair is broken.
Here '휠체어가' is the subject of the sentence expressing the characteristic of convenience.