`4` I spoke to her about my vacation.

`5` Mr. Quang has taught mathematics for many years.

`6` I saw you at the party last night.

`7` They lived here two years ago.

`8` Nga was late for school yesterday morning.

`9` They arrived at the airport at eight o'clock this morning.

`10` Minh put the cake on the table.

`-----`

`***` Quá khứ đơn

`-` Với tobe

`(+)` S + was/were

`(-)` S + was/were + not

`(?)` (Wh) + Was/Were + S?

`-` Với động từ thường

`(+)` S + V2/ed

`(-)` S + didn't + V

`(?)` (Wh) + Did + S + V?

`->` DHNB: yesterday, this morning, last + mốc thời gian, khoảng thời gian + ago, in + năm trong quá khứ,...  

`***` Hiện tại hoàn thành

`(+)` S + have/has + V3/ed

`(-)` S + have/has + not + V3/ed

`(?)` (Wh) + Have/Has + S + V3/ed?

`->` DHNB: already, recently, lately, just, yet, for + khoảng thời gian, since + mốc thời gian, once, twice, three times,...