1. Simple Present and Past (be) By: S. Pourlahiji

2. Simple Present Subject + Verb Subject I You He She It We You They Verb Be (am, is, are)

3. SingularPlural I amWe are You are He, She, It isThey are Simple Present

4. Examples: Simple Present (affirmative) I am a teacher.She is a student. You are a student.He is a student. You are students.It is an apple. They are students.We are teachers.

5. SingularPlural I am notWe are not/ aren’t You aren’t / are not He, She, It isn’t/ is notThey are not/ aren’t Simple Present (negative)

6. Examples: Simple Present (negative) I am not a teacher.She isn’t a student. You aren’t a student.He isn’t a student. You aren’t students.It isn’t an apple. They aren’t students.We aren’t teachers.

7. Simple Present (interrogative) SingularPlural Is she/ he/ it ? Are we/ they/ you? Am I? Are you?

8. Simple Past PresentPast AmWas IsWas AreWere SingularPlural I wasWe were You were He, She, It wasThey were

9. Examples: Simple Past (affirmative) 1. I was in London in 2012.5. She was my girlfriend. 2. You were a student, now you are an engineer. 6. He was shy. 3. You were students, now you are engineers. 7. We were in Paris. 4. They were very pleased.

10. Simple Past (negative) SingularPlural I was not/ wasn’tWe were not/ weren’t You were not/ weren’t He, She, It was not/ wasn’tThey were not/ weren’t

11. Examples: Simple Past (negative) 1. I wasn't in London in 2012.5. She wasn’t my girlfriend. 2. You weren't a student, now you are an engineer. 6. He wasn’t shy. 4. They weren’t very pleased.7. We weren’t in Paris. 3. You weren’t students, now you are engineers.

12. Simple Past (interrogative) SingularPlural Was she/ he/ it / I ? Were we/ they/ you? Were you?

13. Grammar Exercises.  Put the verb "to be" into the simple past: - I -------- in Canada last summer holiday. - My sister ------- with me. - We ---------- in Montreal. - She --------- very happy. - I --------- happy, too. was was was was were

14. Grammar Exercises.  Put the verb "to be" into the simple past or simple present: - I -------- an engineer. - Last year I -------- a student in Massachusetts Institute of Technology. - I --------- in love with a beautiful girl at that time. We ------ friends. - Now, I live in New York and I -------- married to her. am was was were am

15. Thank You