English verb conjugation
MIGHT PREVENT

Regular verb: prevent - prevented - prevented

Affirmation

Simple form	V-ing form
I might prevent you might prevent she might prevent we might prevent you might prevent they might prevent	I might be preventing you might be preventing she might be preventing we might be preventing you might be preventing they might be preventing
Perfect	V-ing perfect
I might have prevented you might have prevented she might have prevented we might have prevented you might have prevented they might have prevented	I might have been preventing you might have been preventing she might have been preventing we might have been preventing you might have been preventing they might have been preventing

Negation

Simple form	V-ing form
I mightn't prevent you mightn't prevent she mightn't prevent we mightn't prevent you mightn't prevent they mightn't prevent	I mightn't be preventing you mightn't be preventing she mightn't be preventing we mightn't be preventing you mightn't be preventing they mightn't be preventing
Perfect	V-ing perfect
I mightn't have prevented you mightn't have prevented she mightn't have prevented we mightn't have prevented you mightn't have prevented they mightn't have prevented	I mightn't have been preventing you mightn't have been preventing she mightn't have been preventing we mightn't have been preventing you mightn't have been preventing they mightn't have been preventing

Interrogative form

Simple form	V-ing form
might I prevent? might you prevent? might she prevent? might we prevent? might you prevent? might they prevent?	might I be preventing? might you be preventing? might she be preventing? might we be preventing? might you be preventing? might they be preventing?
Perfect	V-ing perfect
might I have prevented? might you have prevented? might she have prevented? might we have prevented? might you have prevented? might they have prevented?	might I have been preventing? might you have been preventing? might she have been preventing? might we have been preventing? might you have been preventing? might they have been preventing?

Interro-negative form

Simple form	V-ing form
mightn't I prevent? mightn't you prevent? mightn't she prevent? mightn't we prevent? mightn't you prevent? mightn't they prevent?	mightn't I be preventing? mightn't you be preventing? mightn't she be preventing? mightn't we be preventing? mightn't you be preventing? mightn't they be preventing?
Perfect	V-ing perfect
mightn't I have prevented? mightn't you have prevented? mightn't she have prevented? mightn't we have prevented? mightn't you have prevented? mightn't they have prevented?	mightn't I have been preventing? mightn't you have been preventing? mightn't she have been preventing? mightn't we have been preventing? mightn't you have been preventing? mightn't they have been preventing?