"I teach Welsh in a school. I'm a teacher."
Translation:Dw i'n dysgu Cymraeg mewn ysgol. Athrawes dw i.
What is the difference between using Dw i'n and Dw i? Similarly, the difference between dych chi'n and dych chi.
Without the "'n" the tense is unclear as from "Dw i/dych chi" you can then have "dw'n/dych chi'n" which is present tense, or "dw i wedi/dych chi wedi" which is past tense. The "'n" isn't needed in second sentence, but I'm not sure why sorry.