How can you tell if a sentence is passive?

Related questions

1. What is the rule of passive voice?
2. How do you write in third person passive?
3. What is passive grammar?
4. Is my sentence passive?
5. What does passive mean sexually?
6. What is past passive?
7. What is the problem with passive voice?
8. What is present perfect passive?
9. How do you correct a passive sentence?
10. What is passive writing?

Tags

1. #sentence
2. #thing
3. #passive
4. #happened
5. #responsible
6. #occurs
7. #actions
8. #participle
9. #person
10. #straight
11. #omitted
12. #voice
13. #after
14. #doing
15. #either
16. #identify