"I like the holidays."
Translation:Dw i'n hoffi'r gwyliau.
The definite article has three forms y, yr and 'r
y is used before a consonant Y ci - 'The dog'
yr is used before a vowel Yr arth - 'The bear'
'r is used following a vowel with the following word being either a consonant or a vowel a'r ci - 'and the dog' a'r arth - 'and the bear'
'r is very often seen after verbs ending in vowels - Dw i'n hoffi'r coffi yma - 'I like the coffee here'.