All you need is love -
Yr holl wyt ti angen yw cariad
Gyda fy holl gariad.
'caru chi i gyd y byd'
Cariad.
i love you is called 'te amo' in latin and 'i love chi' in welsh i love you too is called 'i love chi hefyd' in welsh and 'te amo etiam' in latin
Cariad = love say carry-add
Caru Cymru
cyfathrach rywiol
'Cariad mawr'.
Dwi'n dy garu di
Yr oedd modd
Rydym yn caru chi
All Welsh-speaking people in Wales are bilingual in English so there's no need to devise a special spelling for English names.