Many, but certainly not all, participants had received their converted contracts at the time of their participation in the focus groups [ footnote 5 ].
Roedd llawer, ond yn sicr nid pob un, o’r rhai a gymerodd ran wedi cael eu contractau wedi’u trosi ar adeg eu cyfranogiad yn y grwpiau ffocws [ troednodyn 5 ].