might preascertain
Regular verb: preascertain - preascertained- preascertained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I might preascertain
you might preascertain
she might preascertain
we might preascertain
you might preascertain
they might preascertain 	I might be preascertaining
you might be preascertaining
she might be preascertaining
we might be preascertaining
you might be preascertaining
they might be preascertaining	I might have preascertained
you might have preascertained
she might have preascertained
we might have preascertained
you might have preascertained
they might have preascertained	I might have been preascertaining
you might have been preascertaining
she might have been preascertaining
we might have been preascertaining
you might have been preascertaining
they might have been preascertaining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I might not preascertain
you might not preascertain
she might not preascertain
we might not preascertain
you might not preascertain
they might not preascertain 	I might not be preascertaining
you might not be preascertaining
she might not be preascertaining
we might not be preascertaining
you might not be preascertaining
they might not be preascertaining	I might not have preascertained
you might not have preascertained
she might not have preascertained
we might not have preascertained
you might not have preascertained
they might not have preascertained	I might not have been preascertaining
you might not have been preascertaining
she might not have been preascertaining
we might not have been preascertaining
you might not have been preascertaining
they might not have been preascertaining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
might I preascertain?
might you preascertain?
might she preascertain?
might we preascertain?
might you preascertain?
might they preascertain? 	might I be preascertaining?
might you be preascertaining?
might she be preascertaining?
might we be preascertaining?
might you be preascertaining?
might they be preascertaining? 	might I have preascertained?
might you have preascertained?
might she have preascertained?
might we have preascertained?
might you have preascertained?
might they have preascertained? 	might I have been preascertaining?
might you have been preascertaining?
might she have been preascertaining?
might we have been preascertaining?
might you have been preascertaining?
might they have been preascertaining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
might I not preascertain?
might you not preascertain?
might she not preascertain?
might we not preascertain?
might you not preascertain?
might they not preascertain? 	might I not be preascertaining?
might you not be preascertaining?
might she not be preascertaining?
might we not be preascertaining?
might you not be preascertaining?
might they not be preascertaining? 	might I not have preascertained?
might you not have preascertained?
might she not have preascertained?
might we not have preascertained?
might you not have preascertained?
might they not have preascertained? 	might I not have been preascertaining?
might you not have been preascertaining?
might she not have been preascertaining?
might we not have been preascertaining?
might you not have been preascertaining?
might they not have been preascertaining?