El verbo 'To be' se corresponde a los verbos españoles "ser" y "estar". Dependiendo del sentido de la frase se puede deducir de cual de los dos se trata.
I am English / Soy inglés
I am in England / Estoy en Inglaterra
Tiene tres formas en el presente: am, is, are.
En conversación se suelen usar las formas contraídas
Jaime and Tania are my best friends
En negativa necesita not o las contracción n’t : I am not sad.
Para preguntar se invierte el orden sujeto-verbo.
En las respuestas breves siempre se usa como sujeto el pronombre personal correspondiente, nunca el nombre, + am/ is/ are, sin contraer en afirmativa o contraído en negativa
Usos de “be”
Activities
1.-Circle the correct answer.
1. Mrs White is/ are our teacher this year.
2. I am / is in year 8.
3. Most of my friends am / are in my class.
4. My friends and I are / am good students.
5. Our school isn't / aren't very big.
6. The boys isn't / aren't playing football.
7. Is / Are you 15 years old?
8. Is / Am Sharon from England?
2.-Complete the sentences according to the picture. Use the right form of to be.
3.-Complete the sentences. Use am, is or are.
4.-Complete the text with the correct affirmative or negative form of the verb be.
I (1) ….................... from London. My best friend, Mike, and I (2) ….................... 12 years old, but my friend Paul (3) ….................... (not) 12, he’s 13 years old. They (4) ….................... (not) interested in computers, they like sport. We like school. It (5) ….................... interesting.
5.-Write sentences with the correct form of be.
6.-Write questions with be.