as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
identify the type of conjugation used in the sentence "he has opened the door."
user
the verb "open" is in the past participle form, indicating it is in the present perfect tense.
assistant