"How was the café?"

Translation: Sut roedd y caffi?

[tombo.wb95]

Why is the verb roedd and not oedd?

[ibisc]

Sut (how) is followed (in the formal language ) by a particle yr/y (not the same meaning as 'the').

• Sut yr oedd y cyfarfod? - How was the meeting?

yr oedd is usually shortened to roedd in the colloquial language, and sometimes to oedd in the spoken colloquial language. Stick with roedd in writing.