An extended family consists not only of parents andchildren but also of other relavives, such as grandparents and unmarried aunts and uncles.

consist 는 자동사로 뒤에 전치사와 함께 쓰이잖아요~ not only~but also뒤에나와 있는 of 가
consist와 상관관걔로 쓰인건가요?