Раскройте скобки, чтобы получить Present Perfect либо Past Simple в отрицательной

Раскройте скобки, чтоб получить Present Perfect либо Past Simple в отрицательной форме. I (not/ do) this exercise before. I (not/ do) this exercise yesterday. We (not/ go) to school since the first form. . We (not/ go) to school yesterday. You ( not/ see) a horse last week. You (never/ see) a horse. He (not /say) that yet. He (say) that a minute ago. They (not/ have) breakfast yet. They ( not/have) breakfast a hour ago.