I'm really not joking
I really not joke
pro:sub adv neg part
i'm really not joking .
aɪ m WORD_BOUNDARY ɹ i ə l i WORD_BOUNDARY n ɑː t WORD_BOUNDARY d̠ʒ oʊ k ɪ ŋ WORD_BOUNDARY
i ' m WORD_BOUNDARY r e a l l y WORD_BOUNDARY n o t WORD_BOUNDARY j o k i n g WORD_BOUNDARY