we've been singing Jingle_Bells haven't we
we be sing Jingle_Bells have we
pro:sub aux part n:prop aux pro:sub
we've been singing jingle bells haven't we?
w iː v WORD_BOUNDARY b iː n WORD_BOUNDARY s ɪ ŋ ɪ ŋ WORD_BOUNDARY d̠ʒ ɪ ŋ ɡ ə l WORD_BOUNDARY b e l z WORD_BOUNDARY h æ v ə n tʰ WORD_BOUNDARY w iː WORD_BOUNDARY
w e ' v e WORD_BOUNDARY b e e n WORD_BOUNDARY s i n g i n g WORD_BOUNDARY j i n g l e WORD_BOUNDARY b e l l s WORD_BOUNDARY h a v e n ' t WORD_BOUNDARY w e ? WORD_BOUNDARY