Sorry I haven't written you guys in a while to keep you properly updated.
1	Sorry	sorry	ADJ	JJ	Degree=Pos	0	root	0:root	_
2	I	I	PRON	PRP	Case=Nom|Number=Sing|Person=1|PronType=Prs	5	nsubj	5:nsubj	_
3-4	haven't	_	_	_	_	_	_	_	_
3	have	have	AUX	VBP	Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin	5	aux	5:aux	_
4	n't	not	PART	RB	_	5	advmod	5:advmod	_
5	written	write	VERB	VBN	Tense=Past|VerbForm=Part	1	ccomp	1:ccomp	_
6	you	you	PRON	PRP	Case=Acc|Person=2|PronType=Prs	5	obj	5:obj	_
7	guys	guy	NOUN	NNS	Number=Plur	6	appos	6:appos	_
8	in	in	ADP	IN	_	10	case	10:case	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	10:det	_
10	while	while	NOUN	NN	Number=Sing	5	obl	5:obl:in	_
11	to	to	PART	TO	_	12	mark	12:mark	_
12	keep	keep	VERB	VB	VerbForm=Inf	5	advcl	5:advcl:to	_
13	you	you	PRON	PRP	Case=Acc|Person=2|PronType=Prs	12	obj	12:obj|15:nsubj:xsubj	_
14	properly	properly	ADV	RB	_	15	advmod	15:advmod	_
15	updated	update	VERB	VBN	Tense=Past|VerbForm=Part	12	xcomp	12:xcomp	SpaceAfter=No
16	.	.	PUNCT	.	_	1	punct	1:punct	_
