I'll be your best friend
I be your good friend
pro:sub cop det:poss adj n
i'll be your best friend .
aɪ l WORD_BOUNDARY b iː WORD_BOUNDARY j ʊ ɹ WORD_BOUNDARY b ɛ s t WORD_BOUNDARY f ɹ ɛ n d WORD_BOUNDARY
i ' l l WORD_BOUNDARY b e WORD_BOUNDARY y o u r WORD_BOUNDARY b e s t WORD_BOUNDARY f r i e n d WORD_BOUNDARY