Vowels: Standard - 'a' as in 'path' (2nd 'a'), 'i' as in 'sit', 'u' as in 'put'. Variation - when 'a' is followed by a 'y' and another vowel it is the dipthong 'ai' like 'i' as in 'ice' (1st 'a').
Consonant combination: 'th' is a 'dental stop', combine 't' and 'h' while tip of tongue touches teeth and stops the breath.