How long will it take for relatives to immigrate to the United States, and will American relatives immigrate to refuse visas?

There are several kinds of relative immigrants in the United States, such as spouses of American citizens, adult children of American citizens, underage children of American citizens, brothers and sisters of American citizens, spouses of American green cards, adult children of American green cards, underage children of American green cards and brothers and sisters of American green cards. I want to know what is the relationship between your American relatives and you. Moreover, the speed of each kind of relative immigration is different, ranging from one year to more than ten years. If you provide false materials when applying, you may be refused a visa. Or the applicant is over 2 1 year old, and may be rejected.