I don't get North and Hillard's comp. answer here:

Latin Learning Latin
1

Exercise 24, #5:

The soldiers having been captured gave up their arms.

Me: Mīlitēs captī arma tradidērunt.
Them: Capti milites arma tradidere. (Sorry, no macrons in the answer key).

What is this? I’m fine with their order of Capti milites, but I have no idea what’s up with arma tradidere. I’m treating the participle as just a modifier of the subject, soldiers, and I would expect to see a corresponding verb inflection, perfect indicative active 3rd plural. I’m not even sure what form their verb is in–the present infinitive would be tradere, right?

Thanks!
Eric

2

-ēre is an alternate ending for the perfect 3rd person plural, so tradidēre = tradidērunt. I don’t think there’s any special reason they chose to use that form.

3

sweet–thanks!