TO BE

VERB TO BE

VERBO SER O ESTAR

AFFIRMATIVE AFIRMATIVO	INTERROGATIVE INTERROGATIVO	NEGATIVE NEGATIVO
I am (I'm) Yo soy You are (You're) Tu eres He is (He's) El es She is (She's) Ella es It is (It's) Eso es We are (We're) Nosotros somos You are (You're) Ustedes son They are (They're)Ellos son	Am i? ¿Soy yo? Are you? ¿Eres tú? Is he? ¿Es el? Is she? ¿Es ella? Is it? ¿Es eso? Are we? ¿Somos nosotros? Are you? ¿Son ustedes? Are they? ¿Son ellos?	I am not (I'm not) Yo no soy You are not (You aren't) Tu no eres He is not (He isn't) El no es She is not (She isn't) Ella no es It is not (It isn't) Eso no es We are not (We aren't) Nosotros no somos You are (You aren't) Ustedes no son They are not (They aren't) Ellos no son

Lucy is a doctor

Lucy es doctora 

(característica permantente o ser o to be)

Max is in my house

Max está en mi casa. 

(característica transitoria o estar o to be)