Past (Passive Voice). Usage, Formation and Examples.

Past Simple

(Passive Voice)

Past Continuous

(Passive Voice)

Past Perfect

(Passive Voice) = Past Perfect Continuous

(Passive Voice)

Usage

It is used when the subject of the sentence was not the doer of the action, the action was performed (accomplished) over the subject. It complies with all the rules and exclusions of the Past Simple Active Voice

Usage

It is used when the subject of the sentence was not being the doer of the action, the action was being performed (accomplished) over the subject. It complies with all the rules and exclusions of the Past Continuous Active Voice

Usage

It is used when the subject of the sentence had not been the doer of the action, the action had been performed (accomplished) over the subject. It complies with all the rules and exclusions of the Past Perfect

Active Voice and the Past Perfect Continuous Active Voice.

Formation

(Aff) = S+pr(was, were)+v(3^rdform/ed)+ object +adv.modif. of place + adv. modif. of time.

(-)=S+aux.v.(was, were)+not+(3^rdform/ed)+ +object + adv.modif. of place + adv. modif. of time. (?)=Aux.v.(was,were)+S+(3^rdform/ed)+object+adv.modif. of place + adv. modif. of time?

Formation

(Aff) = S+ aux.v(was, were)+aux.v.(being)+ +v(3^rdform/ed)+ object +adv.modif. of place + adv. modif. of time.

(-)=S+aux.v.(was, were)+not+)+aux.v.(being)+ v.(3^rdform/ed)+ +object + adv.modif. of place + adv. modif. of time. (?)=Aux.v.(was,were)+S+)+aux.v.(being)+ v.(3^rdform/ed)+object+adv.modif of place + adv. modif. of time?

Formation

(Aff) = S+ aux.v(had)+aux.v.(been)+v(3^rdform/ed)+ object +adv.modif. of place+by, till)+adv. modif. of time.

(-)=S+aux.v.(had)+not+)+aux.v.(been)+ v.(3^rdform/ed)+ +object + adv.modif. of place+ (by, till)+ adv. modif. of time. (?)=Aux.v.(had)+S+aux.v.(been)+ v.(3^rdform/ed)+object+adv.modif of place + (by, till)+adv. modif. of time?

Examples

The fundamental distinction between software and conventional electromechanical devices was the unique process by which software was designed

and instantiated.

The fundamental distinction between software and conventional electromechanical devices was the unique process by which software was not designed and instantiated.

Was software designed

and instantiated?

Examples

Some salient features of the processes were being used to design conventional electromagnetic machine components at that moment.

Some salient features of the processes were not being used to design conventional electromagnetic machine components at that moment.

When were salient features of the processes being used to design conventional electromagnetic machine components?

Examples

Various models of the process of engineering design had been proposed before the end of the session.

Various models of the process of engineering design had not been proposed before the end of the session.

Had various models of the process of engineering design been proposed before the end of the session?