Contoh:
(+) The bicycle was being repaired by my brother
(-) The bicycle was not being repaired by my brother
Simple future tense
Rumus:
(+) Subject + Will/Shall + Be + Verb 3 + by + Object
(-) Subject + Will/Shall + Not + Be + Verb 3 + by + Object
Contoh:
(+) My money will be stolen by Sara
(-) My money will not be stolen by Sara
Present perfect tense
Rumus:
(+) Subject + Has/Have + Been + Verb 3 + by + Object
(-) Subject + Has/Have + Not + Verb 3 + by + Object
Contoh:
(+) The concert has been prepared well by the committee
(-) The concert has not been prepared well by them