Sampla(í) Úsáide: Níl a fhios go deo ach cén buidheachas a bhí aige air, there is no knowing how grateful he was to him. Ach cé chomh (con. le fochlás. ain.) Níl a fios ach cé chomh ard is a chuaidh an taoille aréir, there is no knowing how high the tide went last night.