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Absolutely not. Done is the past participle of the verb to do. eg It has been done
Has is a form of the verb to have. Has she fed the dog? Has he done his chores? It is a conjugation of the verb that is pertinent to only the third person singular (he, she, it). It is present tense of the verb example: "Have they done this?" "Has she done that?"This past tense asks if something has been done prior to, or as my spanish teacher says past in the future. When you ask if something has already been done, it is uncertain if it has been done but it could have been. "she has done it" it has already been done in the past. I think it's called a helping verb.
Did, or done, or have, depending on how it has been used in the sentence.
Protected is the past participle of protect.
The past tense of protect is protected.
To solve crimes that have been done in the past.
The past participle of "do" is "done." The past participle of "have" is "had."
Done is the past participle of do.
The passive voice must have the verb 'to be' in the correct tense plus the past participle of the main verb. Here are some examples: I do (active)/it is done (passive) I did (active)/it was done (passive) I am doing (active)/it is being done (passive) I was doing (active)/it was being done (passive) and so on So to change protect into the passive would be I protect (active)/ It is protected (passive)
Had done, or did.
The past tense of "does" or "do" would be "did" or "done", depending on the format of the sentence. Example: Present - Past I do - I did, I had done You do - You did, You had done She/he does - She/he did, S/he had done We do - We did, We had done They do - They did, They had done
Past tense of do is did; past participle is done.