Level 2 Challenge 3 South

I get the following:

a girl/daughter is merch
the girl/daughter is y ferch (feminine singular nouns mutate after y)
two girls/daughters is dwy ferch (dwy causes soft mutation)
a boy is bachgen
the boy is y bachgen
two boys is dau fachgen (dau causes soft mutation)

Please can someone explain why both dwy and dau mutate after y in the following sentences please:

‘The two boys are grown up’ is ‘Mae’r ddau fachgen wedi tyfu lan’ (10:52)
‘The two girls are grown up’ is ‘Mae’r ddwy ferch wedi tyfu lan’ (11:05)

I presume ‘dwy’ mutates to ‘ddwy’ because it matches the mutation in ‘y ferch’, but why does dau mutate to ddau?

It’s one of the anomalies with the "two"s - nothing to do with gender of the two things, just that both dau and dwy mutate after ‘the’.

1 Like

Diolch! :grinning:

1 Like