Translation:Edrychais i ar y dillad.
Why can't this be Mi wnes i erdych ar y dillad?
It can be, please report this sentence if you come across it again.
Sorry I miss read. It should be "Edrych".
Edrychais ar y dillad is correct so why did it say its incorrect?
I think you are missing the pronoun after the verb. It should be "Edrychais i ar y dillad."