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 form of the word "use" is "used."
"Use" is a regular verb; therefore, its past participle is "used".
Used is the past participle; using is the present participle.
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".
Used is the past participle; using is the present participle.
"ridden" is the past participle of "rode"
Used (e.g "It had been used for...", "John was used", etc.)
All are past and past participle in tense.
The past participle of do is done. The past participle of have is had.
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...
Present Perfect: have (has - for the 3rd pers sing) + the verb's 3rd form (the [Past] Participle). Past Perfect: had + the verb's 3rd form (the [Past] Participle). Future Perfect: will (shall) + have + the verb's 3rd form (the [Past] Participle). Past (or Perfect) Conditional: would +have + the verb's 3rd form (the [Past] Participle). Past Subjunctive (Analytical): should + have + the verb's 3rd form (the [Past] Participle). Perfect Infinitive: to have + the verb's 3rd form (the [Past] Participle). Perfect Gerund (also called Present Participle): having + the verb's 3rd form (the [Past] Participle).
The present and past particle of the butterfly is butterflies. butterfly is a noun and doesn't have a present and past participle