"Yes, I want soup."
Translation:Ydw, dw i eisiau cawl.
'I am'= Dw i and 'I' is the i in this case.
There is also another i in Welsh, a preposition meaning 'to, in order to, for', etc.
eisiau is a noun meaning 'want, need':
- *dw i eisiau cawl * - 'I am (with) a want/need of soup'
The word I in Welsh is i, fi, mi depending on context - it's i here.
dw is a form of bod (to be) - it's a bit as if Welsh sayd "I am wanting soup" or more literally "am I wanting soup".