develop -> развивать
Образование времен (Действует субъект! - Актив т.е. действительный залог):
  Past - ПрошлоеPresent - НастоящееFuture - Будущее
Simple - Факт
I/he/she/it/we/you/they
developed
did develop
----
did not develop
did'nt develop
I/we/you/theyhe/she/it
developdevelops
do developdoes develop
----
do not developdoes not develop
do'nt developdoes'nt develop
I/he/she/it/we/you/they
will develop
 
----
will not develop
won't develop
Continous - процесс
I/he/she/itwe/you/they
was developingwere developing
----
was not developingwere not developing
Ihe/she/itwe/you/they
am developingis developingare developing
----
am not developingis not developingare not developing
 is'nt developingare'nt developing
I/he/she/it/we/you/they
will be develop
----
will not be develop
won't develop
Perfect - Завершенность
I/he/she/it/we/you/they
had developed
----
had not developed
had'nt developed
I/we/you/theyhe/she/it
have developedhas developed
----
have not developedhas not developed
haven't developedhasn't developed
I/he/she/it/we/you/they
will be developed
----
will not be developed
won't be developed
Perfect Continous - Процесс в периоде
I/he/she/it/we/you/they
had been developing
I/we/you/theyhe/she/it
have been developinghas been developing
I/he/she/it/we/you/they
will have been developing
develop -> развивать