Future perfect is formed with -- will + have + past participleThe past participle of dive is dived so future perfect is -- will have dived
The past tense of "exist" is "existed." The past perfect tense is "had existed."
The past tense of sit is sat. The past perfect tense of sit is had sat.
The past tense of "bleed" is "bled." The past perfect tense of "bleed" is "had bled."
The past perfect tense is had set.
The past perfect tense is had rung.
The past perfect tense is had bathed.
The past perfect tense of "confront" is "had confronted."
The past perfect tense of "learn" is "had learned."
The past perfect tense is had burned.
The past perfect tense of "submit" is "had submitted."
The past perfect tense of hope is had hoped.