what is the difference between "yw" and"ydy" ?
Mr. lingo yw e
Mr. lingo ydy e
what do these both mean?
Yw is south walian and ydy is north walian they both mean the same thing and are interchangeable.
Unless you're asking a question, and they ydy is standard spoken and written (don't even think of brining up ydyw :P :P :P)
A useful question!
I put: what IS your sisters' name? Is that incorrect?!
The "Is" is correct though the the apostrophe is in the wrong place i.e it should be "sister's"