What is the Different qualifications for naturalization?

The qualifications for naturalization in the United States generally include being at least 18 years old, having lawful permanent resident status for at least five years (or three years if married to a U.S. citizen), demonstrating good moral character, and having basic proficiency in English and knowledge of U.S. history and government. Applicants must also take an oath of allegiance to the United States. Additional criteria may apply for specific circumstances, such as military service.