Passive Voice

The cake was eaten by the childen.

The children ate the cake.

The cake be eaten by them.

The children were eating the cake.

You don´t want to say who or what did the action.

You don´t know who did the action.

The object is the most important part of the sentence.

all of them.

The object is more important than the subject.

The action is the most important.

You must pay attention to the complement.

You have to conjugate the main verb.

We must to study.

Study must be by us.

The children eat the cake.

The cake must be eaten by children.

speak about who was important in the sentence.

change the focus of your sentence.

change the meaning of the sentence.

write formal and informal speeches.

a) was solved

b) will be solved

c) is solved

d) solves

has promoted

to be promoted

has to promoted

has been promoted

is being promoted

is cancelled

was cancelled

will cancelled

will be cancelled

has been cancelled