I am in need of some help...
I am confused as to the difference between "Dw i" and "Dw i'n". Also what the difference between "Dych chi" and "Dych chi'n" are.
In order to use them with a verb, you have to put an yn in between. It can’t really be translated, but it is necessary to use the pronouns with the verb. After vowels, this yn get’s shortened to only ’n, e.g. dw i means ’I am’ and if you want to say ’I am playing’ you have to say dw i’n chwarae.
I also do not get the difference between "allan" and "ma's" , it seems like they are used in the same type of sentences.
There is no difference in meaning between allan and ma's - both mean 'out'. Allan is perhaps used more widely, while ma's is more of a dialect variation in south and south-east Wales.