How long can I get a green card when I immigrate to the United States?

It will take eight years. If parents become American citizens (wait five years), they can get married. Going abroad to continue studying, paying more money, paying taxes frequently and spending more money can't be done soon. Unless the work unit helps you get an identity. Generally, identity processing will be slower. If you marry a citizen, it takes one year to apply for approval, and the green card is temporary for three years. You can become an American citizen after three years of marriage.