If we consider a deponent verb such as arbitrārī in the perfect tense, hence arbitrātus sum/es/est, is the participle arbitrātus supposed to be declined like a regular adjective? For example if one wants to say

Syra thought that Quintus was dead

is it

Syra Quintum mortuum esse arbitrātus est


Syra Quintum mortuum esse arbitrāta est


  • 1
    Welcome to the site and thanks for a good first question! I look forward to seeing more questions from you.
    – Joonas Ilmavirta
    Commented Aug 31, 2020 at 14:11

1 Answer 1


It is the second option with arbitrata. For the purposes of agreement, you can think of the participle as an adjective, so that Syra arbitrata est and Syra Romana est have exactly the same form.

The gender agreement holds for all subjects of all numbers in the same way. For example, uxores arbitratae sunt and mariti arbitrati sunt. And there is no difference between passive perfect forms of normal transitive verbs and active perfect forms of deponent verbs. Deponent verbs are not special in any way here.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.