Present (Aoristlike) or Present Continuous?
This could translate as either 'I am drinking coffee' (imperfective) or, in the colloquial language at least, 'I drink coffee' (habitually or occasionally).
How does the 'y' in "yfed" sounds like?
As in the course voice - like the ‘u’ in British RP English ‘up’. See the pronunciation videos we recommend in the course notes - look on the web for ‘youtube welshplus pronunciation basics’.
why not "I am drinking coffee"
What purpose does "Dw" serve
Roughly, the same purpose as "am" in the sentence "I am drinking coffee".
It's a helping verb used to form the present tense.
dw (am) is a form of bod (to be).