Also is an adverb and does not affect the verb tense. The past perfect tense of think is had thought.
The past perfect tense of "chose" is "had chosen."
Had believed is in the past perfect tense. It is used to indicate an action that was completed before another action in the past.
No, thought is usually considered a past tense verb form. The present tense form would be "think."
The past tense of "he thinks it's worthless" is "he thought it was worthless."
The perfect form of "think" is "have thought." For example, "I have thought about it."
The past perfect tense of "think" is "had thought."
The past perfect of "think" is "had thought."
The past tense of "exist" is "existed." The past perfect tense is "had existed."
The past tense of "bleed" is "bled." The past perfect tense of "bleed" is "had bled."
The past perfect tense of hope is had hoped.
The past perfect tense of "submit" is "had submitted."
The past tense of sit is sat. The past perfect tense of sit is had sat.
present tense past tense future tense present perfect tense past perfect tense future perfect tense present progressive tense past progressive tense future progressive tense present perfect progressive tense past perfect progressive tense future perfect progressive tense
The past perfect tense of 'get' is 'had gotten'
Perfected is the past tense of perfect.
"Had been" is the past perfect tense of be.
The past perfect tense of "do" is "had done." For example, "She had done her homework before dinner."