이다 - To Be

이다 is the Korean copula, equivalent to "to be" in English. It attaches directly to nouns. Key points: • 이다 is the dictionary/written form • 이에요 is used after consonants (polite) • 예요 is used after vowels (polite) • Korean has NO articles (a, an, the) • Subjects are often dropped if obvious from context Sentence structure: [Topic/Subject] + [Noun] + 이다 Example: 저는 학생이에요 = I (topic) + student + am