Example: I / You / We / They (visit) have visited Argentina before.
Example: He / She / It (visit) has visited Argentina before.

1) I (visit) has visitedhave visitedAustralia before.

2) You (visit) has visitedhave visitedMexico before.

3) We (visit) has visitedhave visitedCanada before.

4) They (visit) has visitedhave visitedChina before.

5) He (visit) has visitedhave visitedAfrica before.

6) She (visit) has visitedhave visitedIndia before.

7) It (visit) has visitedhave visitedEurope before.