Thì quá khứ đơn của động từ “to be"

PAST SIMPLE
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THÌ QUÁ KHỨ ĐƠN CỦA ĐỘNG TỪ “TO BE”
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THỂ KHẲNG ĐỊNH
-Ở thể khẳng định của thì quá khứ đơn, động từ “to be” được chia thành “were – dùng với chủ ngữ: we / you / they; và các chủ ngữ số nhiều khác” và 
“was – dùng với chủ ngữ: he / she / it; và các chủ ngữ số ít khác”.
-Công thức tổng quát là: S + were / was 
I / He / She / It 	was
We / You / They 	were
-Công thức cụ thể: 
F Example:
I was a student.	We were students.
He was a student.	You were students.
She was a student.	They were students.
It was a dog.
THỂ PHỦ ĐỊNH
-Ở thể phủ định của thì quá khứ đơn, động từ “to be” được chia bằng cách thêm “NOT” vào sau “were / was” .
-Công thức tổng quát: S + were not / was not
I / He / She / It 	was not
We / You / They 	were not
-Công thức cụ thể:
F Example:
I was not a student.	We were not students.
He was not a student.	You were not students.
She was not a student.	They were not students.
It was not a dog.
THỂ NGHI VẤN
-Ở thể nghi vấn của thì quá khứ đơn, động từ “to be” được chia bằng cách đem “were / was” ra đặt trước chủ ngữ.
-Công thức tổng quát: Were / Was + S .?
Were 	we / you / they ..?
Was 	I / he / she / it.?
-Công thức cụ thể:
F Example:
Was I a student?	Were we students?
Was he a student?	Were you a student?
Was she a student?	Were they students?
Was it a dog?