reduce -> уменьшать
Образование времен (Действует субъект! - Актив т.е. действительный залог):
  Past - ПрошлоеPresent - НастоящееFuture - Будущее
Simple - Факт
I/he/she/it/we/you/they
reduced
did reduce
----
did not reduce
did'nt reduce
I/we/you/theyhe/she/it
reducereduces
do reducedoes reduce
----
do not reducedoes not reduce
do'nt reducedoes'nt reduce
I/he/she/it/we/you/they
will reduce
 
----
will not reduce
won't reduce
Continous - процесс
I/he/she/itwe/you/they
was reducingwere reducing
----
was not reducingwere not reducing
Ihe/she/itwe/you/they
am reducingis reducingare reducing
----
am not reducingis not reducingare not reducing
 is'nt reducingare'nt reducing
I/he/she/it/we/you/they
will be reduce
----
will not be reduce
won't reduce
Perfect - Завершенность
I/he/she/it/we/you/they
had reduced
----
had not reduced
had'nt reduced
I/we/you/theyhe/she/it
have reducedhas reduced
----
have not reducedhas not reduced
haven't reducedhasn't reduced
I/he/she/it/we/you/they
will be reduced
----
will not be reduced
won't be reduced
Perfect Continous - Процесс в периоде
I/he/she/it/we/you/they
had been reducing
I/we/you/theyhe/she/it
have been reducinghas been reducing
I/he/she/it/we/you/they
will have been reducing
reduce -> уменьшать