Passive voice

washes

washed

is washed

was washed

considered

is considered

was considered

were considered

were opened

was opened

is opened

are opened

are called

aren't called

isn't called

weren't called

are called

were called

call

calls

were washed

washed

weren't washed

are washed

was crowned

crowned

crown

crownes

isn't divided

aren't divided

is divided

was divided

The Beach hut were completely rebuilt last summer.

The Beach hut was completely rebuilt last summer.

The Beach hut is completely rebuilt last summer.

Last year around one million sea birds are killed by plastic rubbish.

Last year around one million sea birds were kill by plastic rubbish.

Last year around one million sea birds were killed by plastic rubbish.

This attraction is visited by lots of tourists.

This attraction was visited by lots of tourists.

This attraction will be visited by lots of tourists.

The postcard was sented yeasterday. 

The postcard will be sent yeasterday. 

The postcard was sent yeasterday. 

The dolphins are training by animal experts.

The dolphins train by animal experts.

The dolphins are trained by animal experts.

The beach huts don't painted every year.

The beach huts aren't painted every year.

The beach huts weren't painted every year.

Lots of floods will caused by global warming.

Lots of floods are caused by global warming.

Lots of floods will be caused by global warming.