u/Direct_Block

For Feminine and Masculine nouns, do Welsh speakers tend to have any method to learn/remember whats masculine and feminine?

I understand that all words have their own plural which is one of the following: -au, -iau, -ion, -ydd, -i, -od, a change of vowels or a change of vowels and an added ending.

Does anyone have any methods they use to remember/learn which plural ending applies to which word