learn -> учиться
Образование времен: Субъект подвергается (Пассив, или иначе страдательный залог)
  Past - ПрошлоеPresent - НастоящееFuture - Будущее
Факт - Simple
I/he/she/itwe/you/they
was learnedwere learned
---
was not learnedwere not learned
wasn't learnedweren't learned
Ihe/she/itwe/you/they
am learnedis learnedare learned
---
am not learnedis not learnedare not learned
 isn't learnedaren't learned
I/he/she/it/we/you/they
will be learned
---
will not be learned
won't be learned
Процесс - Continuous
I/he/she/itwe/you/they
was being learnedwere being learned
---
was not being learnedwere not being learned
wasn't being learnedweren't being learned
Ihe/she/itwe/you/they
am being learnedis being learnedare being learned
---
am not being learnedis not being learnedare not being learned
 isn't being learnedaren't being learned
Завершенность - Perfect
I/he/she/it/we/you/they
had been learned
---
had not been learned
hadn't been learned
I/we/you/theyhe/she/it
have learnedhas learned
---
have not learnedhas not learned
haven't learnedhasn't learned
I/he/she/it/we/you/they
will have been learned
---
will not have been learned
won't have been learned
Вместо отсутствующих форм Perfect Continuous употребляются формы Perfect
learn -> учиться