Haven't heard from you in a while.
1-2	Haven't	_	_	_	_	_	_	_	_
1	Have	have	AUX	VBP	Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin	3	aux	3:aux	_
2	n't	not	PART	RB	_	3	advmod	3:advmod	_
3	heard	hear	VERB	VBN	Tense=Past|VerbForm=Part	0	root	0:root	_
4	from	from	ADP	IN	_	5	case	5:case	_
5	you	you	PRON	PRP	Case=Acc|Person=2|PronType=Prs	3	obl	3:obl:from	_
6	in	in	ADP	IN	_	8	case	8:case	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	8:det	_
8	while	while	NOUN	NN	Number=Sing	3	obl	3:obl:in	SpaceAfter=No
9	.	.	PUNCT	.	_	3	punct	3:punct	_
