For two weeks he had been tied by an invisible thread to the old man.
1	For	for	ADP	_	_	3	case	_	_
2	two	two	NUM	CARD-PL	NumType=Card	3	nummod	_	_
3	weeks	week	NOUN	PL-NOM	Number=Plur	7	obl	_	_
4	he	he	PRON	PERS-P3SG-NOM	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	7	nsubj:pass	_	_
5	had	have	AUX	PAST	Mood=Ind|Tense=Past|VerbForm=Fin	7	aux	_	_
6	been	be	AUX	PERF	Tense=Past|VerbForm=Part	7	aux:pass	_	_
7	tied	tie	VERB	PASS	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
8	by	by	ADP	_	_	11	case	_	_
9	an	an	DET	IND-SG	Definite=Ind|PronType=Art	11	det	_	_
10	invisible	invisible	ADJ	POS	Degree=Pos	11	amod	_	_
11	thread	thread	NOUN	SG-NOM	Number=Sing	7	obl	_	_
12	to	to	ADP	_	_	15	case	_	_
13	the	the	DET	DEF	Definite=Def|PronType=Art	15	det	_	_
14	old	old	ADJ	POS	Degree=Pos	15	amod	_	_
15	man	man	NOUN	SG-NOM	Number=Sing	7	obl	_	SpaceAfter=No
16	.	.	PUNCT	Period	_	7	punct	_	_
