The past perfect tense of borrow is had borrowed.
The past tense of "borrow" is "borrowed".
The present perfect tense of let is: have/has let
The past tense of "borrow" is "borrowed."
The past tense and past participle of borrow are both borrowed.
Existed is the past tense. The past perfect tense is had existed.
The past tense of "borrow" is "borrowed".
The present perfect tense of let is: have/has let
The past tense of "borrow" is "borrowed."
The past tense and past participle of borrow are both borrowed.
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.