Q&A Forum

I thought we need to agree past participle with the number of people... I did, We brushed our hair = Nous nous sommes brossés les cheveux. However, kwizBot said, it was only nearly good, the right answer was: Nous nous sommes brossé les cheveux.
I'm confused, what's my mistake then? Did I misunderstand something?

I got the sentence “Nous n’avons pas eu....” wrong because I translated it as “We never had...”