By is not a verb and does not have participle forms; however, buy is a verb. The past participle is bought.
Wrote is the past tense, written is the past participle, and writing is the present participle.
infinitive: tear past: tore past participle: torn
Tear (to destroy, separate):The past tense is tore.The past participle is torn.The present participle is tearing.Tear (to produce tears):The past tense is teared.The past participle is teared.The present participle is tearing.
Because rescue is a regular verb the past and the past participle is rescued.
The past participle of reading is read (pronounced red)
The past participle of "do" is "done." The past participle of "have" is "had."
The past participle of "am not" is "have not been."
The past tense of "have" is "had," and the past participle is also "had."
The past participle of the word "have" is "had."
The past participle of "will" is "willed."
The past participle of "am, are, is" is "been."
Being is the present participle. The past participle is been.
The past participle of "to" is "been." The past participle of "be" is also "been."
The past tense and the past participle is "answered".
The past and past participle for "buy" is "bought."
"Sold" does not have any past participle; it is the past participle of "sell".
The past participle of "was" is "been" and the past participle of "were" is also "been".