I've been drinking milk
I be drink milk
pro:sub aux part n
i've been drinking milk .
aɪ v WORD_BOUNDARY b ɪ n WORD_BOUNDARY d ɹ ɪ ŋ k ɪ ŋ WORD_BOUNDARY m ɪ l k WORD_BOUNDARY
i ' v e WORD_BOUNDARY b e e n WORD_BOUNDARY d r i n k i n g WORD_BOUNDARY m i l k WORD_BOUNDARY