Wonderful Welsh!

'Fi angen at cer acha 'r Chyfrifiadur' isn't correct Welsh. =/

Rydw i moen mynd ar y cyfrifiadur is how you would say that and those are not welsh vowels the vowels are a, e, i, o, u, w, y, easily remembered as 'o ie wyau'  (o yes eggs) :)

I would say " Dwi'n eisiau mynd i cyfrifiadur" but I am from Gogledd Cymru, but I dont think it's that different in the south :/ :S

plus H is only occasionly a vowel, we sometimes say it's one but i depends!

'Fi angen at cer acha 'r Chyfrifiadur?' really isn't good welsh. I'm from the south and that's not how you say it, "Hoffwn fynd ar y gyfrifiadur" is more like it. plus it doesn't mean 'ish this welsh' :S

Mae gwallau yn rhifau 2 a thri. There are errors in 2 and 3.

Yeah this Welsh looks as if it's been translated by Google Translate.

Fi angen at cer acha'r chyfrifiadur actually means something like "I need to go at go computer" which doesnt make any sense. Also, "h" is not a welsh vowel although sometimes it is used in "treiglo" as a vowel.