I'm not exactly sure about when to use dw i, i'n and also y'n. I get them 'right' but it's more from guessing rather than knowing.
Dw i = I am
We use it to say your name eg Megan dw i = Megan I am/ I am Megan
We use it with 'eisiau' to want eg Dw i eisiau coffi = I want coffee (I am wanting coffee)
We use it with 'wedi' to talk about something in the past eg Dw i wedi codi = I have got up (I am after getting up)
To connect Dw i to all other verbs we need 'yn'
eg Dw i yn hoffi coffi = I like coffee (I am liking coffee)
Because we have two vowels next to each other here:- Dw I Yn hoffi coffi
We contract this to 'Dw i'n hoffi coffi'
Hope that helps.
Thank you! It's helpful for me to see the literal word-for-word translation as well as the sense of it in English, in order to decipher the grammar. I can memorize phrases and their meaning, like "Dw i eisiau coffi" means "I want coffee," but knowing it translates literally to "I am wanting coffee" helps me understand WHY the sentence is constructed that way.
Question: If "wedi" refers to things in the past, and can translate to "after," then how does the phrase "wedi blino" (I am tired) literally translate?