Finf the mistakes and correct them using the present perfect

[email protected] в категроии Английский язык, вопрос открыт 30.03.2018 в 19:34

1 I wasn't been bungree jumping before
2 they not have been to scotland
3 have you went to classical concert?
4 we didn't been on an adventure holiday before
5 I have been not to brazil
6 did they been hiking before
please help me