• S + was + O

(Nếu S: I, he, she, it, danh từ số ít)

• S + were + O

(Nếu S: we, you, they, danh từ số nhiều)

I was at home

You were busy

• S + wasn’t + O

(Nếu S: I, he, she, it, danh từ số ít)

Lưu ý: wasn’t = was not

• S + weren’t + O

(Nếu S: we, you, they, danh từ số nhiều)

Lưu ý: weren’t = were not

I wasn’t at home

You weren’t busy

• Was + S + O?

(Nếu S: I, he, she, it, danh từ số ít)

• Were + S + O?

(Nếu S: we, you, they, danh từ số nhiều)

Was I at home?

• Yes, you were
• No, you weren’t

Was he hungry?

• Yes, he was
• No, he wasn’t

Were you busy?

• Yes, I was
• No, I wasn’t

Were they doctors?

• Yes, they were
• No, they weren’t

He went fishing

S + didn’t + V₀ + O

He didn’t go fishing

Did he go fishing?

• Yes, he did
• No, he didn’t

Did they work for that company?

• Yes, they did
• No, they didn’t

Động từ có tận cùng là”y” mà trước nó là một phụ âm thì đổi “y” thành “i” rồi thêm “ed”

study -> studied

Đối với động từ 2 âm tiết có 3 chữ cuối trong từ là phụ - nguyên – phụ thì gấp đôi phụ âm khi trọng âm nhấn vào âm thứ 2

Nếu trọng âm nhấn vào âm thứ nhất thì không gấp đôi phụ âm cuối

transfer  -> transferred                      

enter -> entered