I just started to learn welsh and I find it difficult to understand when for example, to try is trio then it changes to ddrio, the same as want dw in moyn becomes on in moyn, there’s quite a few like that could you explain why this happens
dw in moyn = I want becomes on in moyn = I wanted (I was wanting)
This page may help. https://parallel.cymru/ask-dr-gramadeg-introducing-mutations/?lang=en