Question

Past perfect tense
12. By the time you understood the problem I ... (find) the solution.
13. He was fired because he .... (give away) some documents.
14. I knew what to do because I .... (experience) it before.
15. By the late sixteenth century, American silver .... (account) for one-fifth of Spain's total
budget.

Answer 1

Answer:

___________´´_________´__

Answer 2

Answer:

• How to Form The Past Perfect Tense. To form the past perfect tense you use the past tense of the verb "to have," which is had, and add it to the past participle of the main verb. For example: subject + had + past participle = past perfect tense.

Use this method