Your answer pleases me(Active voice)
I am pleased with your answer.(passive voice)
I think it is difficult to say whether pleased is a participle or an adjective in the sentence in the passive voice We know that pleased can be a verb and an adjective too.
If somebody asked us to say whether pleased is an adjective or a verb in the sentence, what would be our answer.?
I think we will face the problem when verbs such as satisfy, please , interest which can be adjectives as past participles are used as verbs.
English interests me.( active voice)
I am interested in English(passive voice)
Here intersted is both a verb and adjective.
The problem arises when past participles and adjective forms are the same.
He likes me(active voice)
I am liked by him( passive voice)
Here liked is clearly a verb
Here is a links which show pleased as an adjective. and please as a verb.
This is not at all a dupiicate because staple is a verb and stapled is the past participle of staple but it is not adjective but pleased , satisfied, and dissatisfied are listed as verbs and adjectives.
Even if we change the tense they are difficult to classify.
I was pleased with your answer.
I was satisfied with your answer
I will be satisfied with your answer
I will be pleased with your answer
Here is a link which shows staple only as a verb
Here is another link which shows satisfy as a verb followed by the preposition with