การใช้ Verb to be กับประธานและกาล ต่างๆ
1. V to be มี 9 รูป คือ is, am, are, was, were, been, being, be, to be2. V. to be มีความหมายว่า เป็น, อยู่, คือ, กำลัง, ถูกทำ, เป็นส่วนสมบูรณ์
3. ประธานเอกพจน์ใช้ Is พหูพจน์ใช้ are ยกเว้น I ใช้ am, You ใช้ are เสมอ
4. ทำเป็นปฎิเสธ ได้โดยการเติม not หลัง is, am, are, was, were เท่านั้น
5. ทำเป็นคำนามได้โดยนำ is, am, are, was, were กลับไปไว้หน้าประโยค เช่น
| บอกเล่า | ปฎิเสธ | คำถาม |
| I am.............. | I am not ........... | Am I........? |
| We are....... | We are not......... | Are we.....? |
| You are......... | You are not........ | Are you......? |
| They are........ | They are not......... | Are they......? |
| He is .......... | He is not ............ | Is he..........? |
| She is....... | She is not.............. | Is she.........? |
| It is........... | It is not.............. | Is it...........? |
| ปัจจุบัน | อดีต | อนาคต | สามารถ | perfect |
| is,am ---> | was ---> | will be -----> | can be ----> | has been |
| are -----> | were----> | will be -----> | can be ----> | have been |
ตัวอย่าง
| บอกเล่า | ปฎิเสธ | คำถาม |
| ปัจจุบัน : He is a teacher. | He is not a teacher. | Is he a teacher ? |
| อดีต : He was a teacher. | He was not a teacher. | Was he a teacher ? |
| อนาคต : He will be a teacher. | He will not be a teacher. | Will he be a teacher ? |
| สามารถ : He can be a teacher. | He can not be a teacher. | Can he be a teacher ? |
| Perfect : He has been a teacher. | He has not been a teacher. | Has he been a teacher ? |
| อื่นๆ : He should be a teacher. | He should not be a teacher. | Should he be a teacher ? |
การใช้ Verb to be ในความหมายต่างๆดังนี้
| 1. | be + Noun = เป็น, คือ, เช่น | He is a teacher. |
| He was a teacher last year. | He will be a teacher next year. | |
| I am a student. | They are farms. |
| 2. | be + preposition = อยู่ เช่น | He is in the office now. |
| He was in the office yesterday. | He will be in the office tomorrow. | |
| She is in the kitchen now. | The letter is on the book. |
| 3. | be + V-ing = กำลัง เช่น | He is working now. |
| They are playing football now. | She is writing a letter now. | |
| My friend is standing over there. | Somsak is reading a letter now. |
| 4. | be + V3 = ถูกกระทำ | The room is cleaned every day. |
| The house was built last year. | He will be punished tomorrow. | |
| The work must be finished today. | The building will be built next year. |
| 5. | be + adjective = เป็นส่วนสมบูรณ์ คือ ไม่แปลว่า เป็น,อยู่,คือ,กำลัง,ถูกทำ เช่น | |
| He was angry with you yesterday. | They are happy. | |
| The car is expensive. | She is beautiful | |
| 6. | There is = มี (สิ่งเดียว) | There is a boy in the room. |
| There are = มี (มากกว่าหนึ่ง) | There are two boys in the room. | |
| There isn't a boy in the room. | Is there a boy in the room ? | |
| There aren't two boys in the room. | Are there two boys in the room ? | |
| There was a boy in the room yesterday. ( อดีตใช้ was , were ) | ||
| There will be a boy in the room tomorrow. ( อนาคตใช้ will be ) | ||
| ปัจจุบัน | อดีต | อนาคต |
| There is .........มี (เอกพจน์) | There was............. | There will be |
| There are..........มี (พหูพจน์) | There were.............. | There will be |
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