|
tenses
subject
verb
object
Simple Present
infinitive (3. P. Sg. =infinitive + s)
è active
Peter
builds
a house.
è passive
A house
is built
by Peter.
Simple Past
verb + ed / 2nd form of the verb
è active
Peter
built
a house.
è passive
A house
was built
by Peter.
Present Perfect
have/has + 3rd form of the verb
è active
Peter
has built
a house.
è passive
A house
has been built
by Peter.
Past Perfect
had + 3rd form of the verb
è active
Peter
had built
a house.
è passive
A house
had been built
by Peter.
Present Progressive
be + verb +ing
è active
Peter
is building
a house.
è passive
A house
is being built
by Peter.
Past Progressive
was + verb + ing
è active
Peter
was building
a house.
è passive
A house
was being built
by Peter.
will-future
will + infinitive
è active
Peter
will build
a house.
è passive
A house
will be built
by Peter.
The passive and the tenses
subject + form of "be" + past participle + by + agent
| 
