Present perfect 3 (number of times)

We _______ (visit) the museum several times this year.

• visited

• has visited

• visiting

• have visited

Mary _____ (write) three letters today.

• writen

• wrote

• has wrote

• has written

We (a)   (clean) the house twice this week.

(Clean: Động từ có quy tắc)

We (a)   (eat) at that restaurant many times so far.

V1 -> V2 -> V3: eat -> ate -> eaten

I (a)   (lose) my keys three times until now.

V1 -> V2 -> V3: lose-> lost -> lost

Mary (a)   (bake) cookies twice this week.

(Bake: Động từ có quy tắc)

They (a)   (win) the game several times this season.

V1 -> V2 -> V3: win -> won -> won

We (a)   (miss) the bus three times this week.

(miss: Động từ có quy tắc)

I (a)   (forget) my lunch at home twice this month.

V1 -> V2 -> V3: forget -> forgot -> forgotten

Mary (a)   (wear) that pink dress three times this week.

V1 -> V2 -> V3: wear -> wore -> worn