adnapech bf aethech bf anorthrech a brech ab,eb buasech bf byddech bf cawsech bf crech ab cromlech eb cydymdrech ebg chwech a daethech bf delech bf deuech bf dilech a dylasech bf dylech bf elech bf elsech bf gorthrech eg gorwech ab gwech ab gwnaethech bf gwnelech bf gwnelsech bf gwypech bf llech eb oeddech bf petasech cys priddlech eb sech ab sgrech eb trech a,eg ymdrech bf,eb