Wel, Gallwn i works in the same way. Here are the full forms:
Gallwn i - I could Gallet ti - You could Gallai e/hi - He/She could Gallen ni - We could Gallech chi - You could Gallen nhw - they could
Do you remember Galla i - I can? - galla i, galli di, gallai e/hi, gallwn ni, gallwch chi, gallan nhw Alla i ddim credu'r peth - I can't believe it Alli di ddim troi'r cloc nôl - you cant turn the clock back
Ti sy'n gyfrifol am hyn says Arwyn (you are responsible for this) Ti syn gyfrifol am hyn.
Ti o'dd yn gyrrur car na noson y ddamwen, is Dic's response. (It was you that was driving that car on the night of the accident).
In emphatic statements like these, the noun or pronoun comes before rather than after the verb. Ro't ti'n gyrru'r car - then becomes - ti o'dd yn gyrru'r car.
In this exchange notice that Nage and Ie are used in response to emphatic statements - remember that these are the answers when no verb appears at the beginning of a question for example:
Siân dych chi? - Ie. Cymraes dych chi? - Ie. Dych chi'n byw yn Abertawe? - Nac ydw.
Look out for the phrase - ar fy mhen fy hun - on my own.
Dw isio bod ar fy mhen fy hun - I want to be on my own
Ar (fy) mhen (fy) hun Ar dy ben dy hun Ar ei phen ei hun Ar ei ben ei hun Ar ein pennau ein hunain Ar eich pennau eich hunain Ar eu pennau u hunain.
Useful words and phrases:
Poblogaidd - popular O ddifri - seriously Hollol o ddifri - deadly serious Cefndir - background Maddau - to forgive Bant - South Wales form for i ffwrdd - away Cydwybod - conscience Cydymdeimlo - to sympathise O ddifri? - Seriously? - O ddifri? Sylweddoli - to realise Dim siw na miw - not a murmur
Mae'r achos wedi mynd i'r gwellt; literally, the case has gone to the hay! Mae'r achos wedi mynd i'r gwellt - The case has collapsed.