"Dewi Lingo has a black coffee."
Translation:Mae coffi du gyda Dewi Lingo.
Diolch. It's just that it didn't show the 'gyda' version as an alternative, and I'm finding this the most tricky topic so far. I'll keep revisiting!
I think it is a very difficult topic as I am also getting confused! I'm sure it will all become clearer with practice though. :-)