What living conditions and amount do you need to keep your green card in the United States?

A green card means you need it because you will live in America for a long time. According to this theory, you can't leave America for long. In other words, if you want to change citizens in the future, you must live in the United States for more than 183 days every year for five consecutive years, and file tax returns on time every year. If there is no plan to change American citizens, it is best not to appear in the camera for more than 4-5 months at a time, otherwise when you come back to enter the customs, the immigration officer will question you and doubt the necessity of keeping your green card.