"They see powerful horses."
Translation:Kostōbī annī urnesi.
July 31, 2020
To quickly summarize,
- Anne "horse" - singular nominative; Anne vale urnes "the horse sees a man"
- Anni "horses" - plural nominative; Anni vale urnesi "The horses see a man"
- Annī "horse(s)" - singular and plural accusative. Vala annī urnes could mean either "the man sees a horse" or "the man sees horses." Both translations are equally valid, absent any additional clues.
You can find a complete table on the wiki: https://wiki.dothraki.org/High_Valyrian_Noun_Declensions