You did a book several years ago, didn't you?
1	You	you	PRON	PERS-P2	_	2	nsubj	_	_
2	did	do	VERB	PAST	Mood=Ind|Tense=Past|VerbForm=Fin	0	root	_	_
3	a	a	DET	IND-SG	Definite=Ind|PronType=Art	4	det	_	_
4	book	book	NOUN	SG-NOM	Number=Sing	2	obj	_	_
5	several	several	ADJ	POS	Degree=Pos	6	amod	_	_
6	years	year	NOUN	PL-NOM	Number=Plur	2	obl	_	_
7	ago	ago	ADP	_	Case=Nom	6	case	_	SpaceAfter=No
8	,	,	PUNCT	Comma	_	9	punct	_	_
9	did	do	VERB	PAST	Mood=Ind|Tense=Past|VerbForm=Fin	2	parataxis	_	SpaceAfter=No
10	n't	not	PART	NEG	_	9	advmod	_	_
11	you	you	PRON	PERS-P2	_	9	nsubj	_	SpaceAfter=No
12	?	?	PUNCT	QuestionMark	_	2	punct	_	_
