tip -> давать чаевые
Образование времен (Действует субъект! - Актив т.е. действительный залог):
  Past - ПрошлоеPresent - НастоящееFuture - Будущее
Simple - Факт
I/he/she/it/we/you/they
tiped
did tip
----
did not tip
did'nt tip
I/we/you/theyhe/she/it
tiptips
do tipdoes tip
----
do not tipdoes not tip
do'nt tipdoes'nt tip
I/he/she/it/we/you/they
will tip
 
----
will not tip
won't tip
Continous - процесс
I/he/she/itwe/you/they
was tipingwere tiping
----
was not tipingwere not tiping
Ihe/she/itwe/you/they
am tipingis tipingare tiping
----
am not tipingis not tipingare not tiping
 is'nt tipingare'nt tiping
I/he/she/it/we/you/they
will be tip
----
will not be tip
won't tip
Perfect - Завершенность
I/he/she/it/we/you/they
had tiped
----
had not tiped
had'nt tiped
I/we/you/theyhe/she/it
have tipedhas tiped
----
have not tipedhas not tiped
haven't tipedhasn't tiped
I/he/she/it/we/you/they
will be tiped
----
will not be tiped
won't be tiped
Perfect Continous - Процесс в периоде
I/he/she/it/we/you/they
had been tiping
I/we/you/theyhe/she/it
have been tipinghas been tiping
I/he/she/it/we/you/they
will have been tiping
tip -> давать чаевые