"I am Sioned."

Translation: Sioned dw i.

[Straw_Neige]

In which cases the verb goes before the subject?

[rmcode]

Welsh is fundamentally a V-S-O language, 'Verb-Subject-Object'.

eg Dw i eisiau afal = literally Am I wanting an apple, but since this isn't a question it's transposed into English as I want an apple

Another example Es i i'r ysgol = literally Went I to school, transposed to I went to school

The only exceptions are ones like the one above where the order is changed to show emphasis.

[Straw_Neige]

Thank you, I think it's very tricky because it's different from the other languages I know, but your explanation has made it clear to me :)

[mackenziem841936]

What doea sioned even mean

[shwmae]

It's a Welsh form of "Janet".

[Incairus]

Sioned is a Welsh girl's name. I had to Google this when I first saw it.