O Duolingo:

•  y ngŵr, y ngŵr i – my husband
• dy chwaer, dy chwaer i – your sister
• dy frawd, dy frawd di – your brother
• ei fodryb, ei fodryb e, ei fodryb o – his aunt
• ei modryb, ei modryb hi – her aunt
• ei hanti, ei hanti hi – her aunt
• eu brawd, eu brawd nhw – their brother
• eich gwraig, eich gwraig chi – your wife
• eich gŵr, eich gŵr chi – your husband
• eich chwaer, eich chwaer chi – your sister
• eich brawd, eich brawd chi – your brother
• eu hewythr, eu hewythr nhw, eu hwncl, eu hwncl nhw – their uncle