The -(으)ㄹ 거예요 ending consists of three elements: -(으)ㄹ + 거 + 예요.
The prospective modifier “-(으)ㄹ” indicates “future” or “uncertainty.”
The bound noun 거 is a colloquial form of 것 “thing” or “fact.”
The ending 예요 is the polite speech level ending of the copula 이다.