"Ez a ruha nem volt tiszta, kimostam."

Translation: This dress was not clean, I washed it.

[Kathy979841]

If it were clothes, it would be them but with only one dress in English it needs to be it.

[Hulk014]

The word ruha can be translated either to clothes or dress.

So " This dress wasn't clean, so i washed it." - " Ez a ruha nem volt tiszta, ezért kimostam "

" Those clothes weren't clean, so i washed them " - " Ezek a ruhák nem voltak tiszták, ezért kimostam őket.

[GregWood15]

Gee, I thought that I was critising myself for doing a lousy job of laundering!

[Kathy979841]

I see now thanks