Why haven't you been answering my letters?
1	Why	why	ADV	WH	PronType=Int	6	advmod	_	_
2	have	have	AUX	PRES-AUX	Mood=Ind|Tense=Pres|VerbForm=Fin	6	aux	_	SpaceAfter=No
3	n't	not	PART	NEG	_	6	advmod	_	_
4	you	you	PRON	PERS-P2	_	6	nsubj	_	_
5	been	be	AUX	PERF	Tense=Past|VerbForm=Part	6	aux	_	_
6	answering	answer	VERB	ING	Tense=Pres|VerbForm=Part	0	root	_	_
7	my	I	PRON	P1SG-GEN	Number=Sing|Person=1|Poss=Yes|PronType=Prs	8	nmod:poss	_	_
8	letters	letter	NOUN	PL-NOM	Number=Plur	6	obj	_	SpaceAfter=No
9	?	?	PUNCT	QuestionMark	_	6	punct	_	_
