Here is a guideline on reading the 'vowels' in Filipino language. Vowel 'u' is added at the bottom of the post.
'a' = should be READ as the short 'a' sound in the word 'art'
a-ko = (pronoun 'I' in the English language) NOT read as 'ey-ko' as in 'a' in the word 'ace'
Ta-yo = ( pronoun 'us' in English) NOT read as 'tey-yo' as in the word 'table'
Halika = (verb 'come' in English) NOT read as 'hey-li-key'
Sounding 'a' as 'ey' is incorrect in the spoken Filipino language.
'e' = should be READ as the short 'e' in the word 'earth' or 'bet'
peke = ('fake' in English) should NOT be read as 'pi-ki' as long 'e' sound as in the English pronoun 'we'
palengke = ('market' in English) should NOT be read as 'pa-ling-ki'
'i' = should be READ as short 'i' sound in the word 'tip'
piso = ('peso' in English) should NOT be read as 'i' in the word 'light'
ligo = ('bathe' in English) should NOT be read as 'i' in 'mind'
'o' = should be READ as short 'o' sound in the word 'corn' / 'oblong' / short
boto = ('vote' in English) should NOT be read as 'o' as in the noun 'rose' , there it sounds like 'ow' .
Sounding 'o' as in 'ow' in Filipino language obviously shows your not a native speaker...
'u' = should be READ as 'oo' in the word 'cool' / 'boo'
bukas = (can mean 'open' or 'tomorrow' depending on where you put the 'stress' on each syllable)
It is wrong to read it as 'byoo-kas' like 'oo' sound in the word 'cue'
I hope I have given a little knowledge how to speak the vowels in my native language. Come back for more. Thanks for reading.