Come si forma il passivo in inglese?

Le regole per formare il passivo in inglese dipendono dal tempo verbale:

PRESENT SIMPLE

FIRES CAUSE A LOT DAMAGE

A LOT DAMAGE IS CAUSED BY FIRES

PRESENT CONTINUOS

IS ANYBODY FOLLOWING US?

ARE WE BEING FOLLOWED?

PAST SIMPLE

FOUR PEOPLE SAW THE UFO

THE UFO WAS SEEN BY FOUR PEOPLE

PRESENT PERFECT

ROS HAVE WON THE RACE

THE RACE HAS BEEN WON BY ROS

INFINITO

I WANT TO DO IT NOW

I WANT IT TO BE DONE NOW

TO BE GOING TO

THEY ARE GOING TO BE BUILD A BRIDGE

A BRIDGE IS GOING TO BE BUILT

CAN

NOBODY CAN LEARN ENGLISH IN 2 WEEKS

ENGLISH CAN NOT BE LEARNT IN 2 WEEKS

WILL

WE WILL FINISH THE REPORT IN TIME

THE REPORT WILL BE FINISHED IN TIME

SHOULD

THEY SHOULD DO SOMETHING

SOMETHING SHOULD BE DONE

MUST

MUST (NOT) BE TOUCHED

SHOULD HAVE

SHOULD HAVE INFORMED

SHOULD HAVE BEEN INFORMED