General facts or habitual repetitive actions
am, is, are + past participle
- Lunch is served at noon.
- The locks are checked every night.
Completed past actions
was, were + past participle
- She was rewarded for her information.
Future promises, predictions, or actions
will be + past participle
- I will be there on Saturday.
Future actions (paired with go, leave, move, etc.) or actions that are currently in progress
am, is, are + being + past participle
- The votes are being counted by impartial volunteers.
- Joe is being crowned king of the dance.
Actions that were in progress at a specific time past
was, were + being + past participle
- They thought they were being careful.
Actions that happened at an unspecified time in the past or that begin in the past but are still currently occurring
has, have + been + past participle
- The boat has been delayed because of the hurricane in the Atlantic.
- Tests have been proctored by teachers for many years.
Actions that began or occurred before something else in the past
had + been + past participle
- She had been searching for clues for hours before bedtime.
NOTE: Future progressive, future perfect, & perfect progressive are not used in passive voice.