Doi -> oi - diftong descendent
Nou -> ou - diftong descendent
Vrei -> ei - diftong descendent
Cuib -> ui - diftong descendent
Iute -> iu - diftong ascendent
Piatra -> ia- diftong ascendent
Vreo -> eo - diftong ascendent
Deal -> ea- diftong ascendent
Leu -> eu - diftong descendent
Soare -> oa - diftong ascendent
Ziua -> ua - diftong ascendent