mistaked
Mistake is the present tense, mistook is the past 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 "had confronted".
Like the verb to set, the verb to cost has a limited conjugation. Both the past tense and past participle are also cost.Past tense: His mistake cost him his freedomPresent perfect: His mistake has cost him his freedom.Past perfect: His mistake had cost him his freedom.
Mistake is the present tense, mistook is the past 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 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.