Vowels: Standard - 'i' as in 'sit', 'e' as in 'pet. Variations 'a' followed by a 'w' is 'o' as in 'owl', 'a' before a 'y' is dipthong 'ai' & pronounced like 'i' as in 'ice'
Consonant combination - 'ty' (palatal stop) - combine 't' and 'y' while tip and blade of tongue touches hard palate and stops the breath. (Note: 'tch' is close but different to 'ty'.) (Avoid the English 'tee' as in 'city'.)