I had seen it happen to others.
1	I	I	PRON	PERS-P1SG-NOM	Case=Nom|Number=Sing|Person=1|PronType=Prs	3	nsubj	_	_
2	had	have	AUX	PAST-AUX	Mood=Ind|Tense=Past|VerbForm=Fin	3	aux	_	_
3	seen	see	VERB	PERF	Tense=Past|VerbForm=Part	0	root	_	_
4	it	it	PRON	PERS-SG	_	3	obj	_	_
5	happen	happen	VERB	INF	VerbForm=Inf	3	xcomp	_	_
6	to	to	ADP	_	_	7	case	_	_
7	others	other	PRON	IND-PL-NOM	Case=Nom	5	obl	_	SpaceAfter=No
8	.	.	PUNCT	Period	_	3	punct	_	_
