`1,` Yesterday was Sunday.

`2,` Where were you last night? `-` I was at Lan's birthday party.

`3,` When was Nga born? `-` She was born in June.

`4,` Were you sick last Sunday? `-` Yes, I was.

`5,` In 2014, my father was in Ho Chi Minh City.

`6,` Cuong and I were in the post office yesterday.

`7,` There was a man here last night.

`8,` We were fine yesterday.

`9,` Was your father in Hue last Friday? `-` No, he wasn't.

`10,` Sinh was born on 21st July 2012.

`----`

`-` N số ít `+` was..

`-` N số nhiều `+` were.. 

`@` QKĐ dạng tobe:

(`+`) S `+` was/were `+` adj/V0..

(`-`) S `+` wasn't/weren't `+` adj/V0..

(`?`) Was/Were `+` S `+` adj/V0..?

`@` QKĐ dạng động từ thường:

(`+`) S `+` V2/V-ed...

(`-`) S + didn't + V0..

(`?`) Did + S + V0..?

`-` DHNB: yesterday, ago, last year/month/week, in the past, the day before,...

`->` Diễn tả 1 hành động, sự việc hoặc sự kiện nào đó diễn ra và đã kết thúc trong quá khứ.