The form of a verb, ending in 'ed' in English is used in forming perfect and passive tenses. The simple past is 'I treated'. The past continuous is 'I was treating'. The past perfect continuous is ' I have been treating'. The past subjunctive is 'I treated'. The past perfect subjunctive is 'I had treated'
treated
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...
Being is the present participle. The past participle is been.
The past participle is had.
The past participle is willed.
The past participle is been.
The past participle is thought.
To isn't a verb and so doesn't have a past participle. The past participle of be is been.
The past tense and the past participle is "answered".