buy -> покупать
Образование времен: Субъект подвергается (Пассив, или иначе страдательный залог)
  Past - ПрошлоеPresent - НастоящееFuture - Будущее
Факт - Simple
I/he/she/itwe/you/they
was boughtwere bought
---
was not boughtwere not bought
wasn't boughtweren't bought
Ihe/she/itwe/you/they
am boughtis boughtare bought
---
am not boughtis not boughtare not bought
 isn't boughtare'nt bought
I/he/she/it/we/you/they
will be bought
---
will not be bought
won't be bought
Процесс - Continuous
I/he/she/itwe/you/they
was being boughtwere being bought
---
was not being boughtwere not being bought
wasn't being boughtweren't being bought
Ihe/she/itwe/you/they
am being boughtis being boughtare being bought
---
am not being boughtis not being boughtare not being bought
 isn't being boughtare'nt being bought
Завершенность - Perfect
I/he/she/it/we/you/they
had been bought
---
had not been bought
hadn't been bought
I/we/you/theyhe/she/it
have boughthas bought
---
have not boughthas not bought
haven't boughthasn't bought
I/he/she/it/we/you/they
will have been bought
---
will not have been bought
won't have been bought
Вместо отсутствующих форм Perfect Continuous употребляются формы Perfect
buy -> покупать