Weegy: In the United States, you can become a naturalized citizen if you have been a legal resident of the United States for at least five years and you are over the age of 18. [ [ In addition, applicants for naturalization must demonstrate good moral character,? as well as a knowledge of the English language and the history of the United States. The citizenship application process can take anywhere from six months to two years, and once approved, a naturalized citizen has all of the rights and responsibilities of a United States citizen, although he or she is barred from serving in the offices of President and Vice President. ] ] (More)