The past perfect tense of place is had placed.
Present tense,present perfect tense,future tense,future perfect tense,past tense,past perfect tense
Existed is the past tense. The past perfect tense is had existed.
The past tense is bled, and the past perfect tense is had bled.
The past tense of sit is sat; the past perfect tense is had sat.
The past perfect tense is created with the auxiliary verb had and a past participle.Examples:The past perfect tense of walk is had walked. (Walk is a regular verb, so the past tense and past participle are the same.)The past perfect tense of break is had broken. (Break is an irregular verb. The past tense is broke, and the past participle is broken.)
The past perfect tense of hope is had hoped.
The past perfect tense is had set.
The past perfect tense is had submitted.
The past perfect tense is "had confronted".
The past perfect tense is had rung.
The past perfect tense is had burned.
The past perfect tense is had chosen.