The past perfect is formed with - had + past participle.
The past participle of swear is sworn. So past perfect of swear is:
had sworn
I had sworn to revenge the death of my cat.
Swore is the past tense of swear. The past perfect tense of swear is had sworn.
The present perfect tense of "swear" is "have/has sworn."
The past tense is 'swore'. The past participle is 'sworn'. For example 'I swore', 'you have sworn.'
Existed is the past tense. The past perfect tense is had existed.
The simple past tense is swore. The past participle is sworn.
Swore is the past tense of swear. The past perfect tense of swear is had sworn.
The present perfect tense of "swear" is "have/has sworn."
The past tense of swear is swore.
"Sworn" and "swore" are both the past tense form of the verb "to swear".
The past tense is 'swore'. The past participle is 'sworn'. For example 'I swore', 'you have sworn.'
Existed is the past tense. The past perfect tense is had existed.
The simple past tense is swore. The past participle is sworn.
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.