Tried. verb2verbe.com has loads of info on all English Verbs
The past perfect progressive tense of the verb "try" is "had been trying."
The future perfect tense of try is will have tried.
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 progressive tense of the verb "try" is "had been trying."
Existed is the past tense. The past perfect tense is had existed.
The future perfect tense of try is will have tried.
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 "had confronted".
The past perfect tense is had chosen.
The past perfect tense is had burned.
The past perfect tense is had set.
The past perfect tense is had rung.
The past perfect tense of hope is had hoped.
The past perfect tense is had submitted.