When: 1. you use it as an adjective (The TORN page was on the floor); 2. you turn an Active verb into the Passive Voice (Dickens wrote "D. Copperfield" = "D. C" was WRITTEN by Dickens); 3. you construct a Perfect Tense (we have danced = Present Perfect; they had turned = Past Perfect; I would have known = Past Conditional etc).
The past participle is used in various grammatical constructions, including forming the present perfect tense (have/has + past participle), the past perfect tense (had + past participle), passive voice (be + past participle), and in certain adjectival phrases.
The past participle form of the word "use" is "used."
"Use" is a regular verb; therefore, its past participle is "used".
The present participle of the verb "use" is "using" and the past participle is "used."
Used (e.g "It had been used for...", "John was used", etc.)
The past participle of "do" is "done." The past participle of "have" is "had."
The past participle form of the word "use" is "used."
"Use" is a regular verb; therefore, its past participle is "used".
"ridden" is the past participle of "rode"
The present participle of the verb "use" is "using" and the past participle is "used."
All are past and past participle in tense.
Used (e.g "It had been used for...", "John was used", etc.)
The past participle of "am not" is "have not been."
The past participle used with "drunk" is "drunk." For example, "He has drunk too much."
The present and past particle of the butterfly is butterflies. butterfly is a noun and doesn't have a present and past participle
Took is the past tense of take.With had you use the past participle form. The past participle of take is taken.He had taken the car and left.
The past participle of "do" is "done." The past participle of "have" is "had."
The past participle of the word "have" is "had."