borrowed
The past tense and past participle of borrow are both borrowed.
No, it is not a conjunction. It is the past tense and past participle of the verb to borrow, and may be a verb form or adjective.
The past participle of do is done. The past participle of have is had.
The verb "let", is one of those words that never change form, regardless of the verb tense. I.E. "He had let his friend borrow the car". Other words in this category include "hit" and "put".
The present perfect tense of let is: have/has let
The past participle of am is been. Not does not have a past participle
What is the past participle of do
The past participle of have is had....:) I have had...
The past participle is had.
The past participle is willed.
The past participle is been.
The past participle is thought.