How to prevent this ?
1	How	how	ADV	WRB	PronType=Int	3	advmod	3:advmod	_
2	to	to	PART	TO	_	3	mark	3:mark	_
3	prevent	prevent	VERB	VB	VerbForm=Inf	0	root	0:root	_
4	this	this	PRON	DT	Number=Sing|PronType=Dem	3	obj	3:obj	_
5	?	?	PUNCT	.	_	3	punct	3:punct	_
