you've not done that before
you not do that before
pro:per neg part pro:dem adv
you've not done that before.
j uː v WORD_BOUNDARY n ɒ tʰ WORD_BOUNDARY d ʌ n WORD_BOUNDARY ð æ tʰ WORD_BOUNDARY b ɪ f ɔː WORD_BOUNDARY
y o u ' v e WORD_BOUNDARY n o t WORD_BOUNDARY d o n e WORD_BOUNDARY t h a t WORD_BOUNDARY b e f o r e . WORD_BOUNDARY