I might ascertain you might ascertain he might ascertain we might ascertain you might ascertain they might ascertain
V-ing form
I might be ascertaining you might be ascertaining he might be ascertaining we might be ascertaining you might be ascertaining they might be ascertaining
Perfect
I might have ascertained you might have ascertained he might have ascertained we might have ascertained you might have ascertained they might have ascertained
V-ing perfect
I might have been ascertaining you might have been ascertaining he might have been ascertaining we might have been ascertaining you might have been ascertaining they might have been ascertaining
Negation
Simple form
I mightn't ascertain you mightn't ascertain he mightn't ascertain we mightn't ascertain you mightn't ascertain they mightn't ascertain
V-ing form
I mightn't be ascertaining you mightn't be ascertaining he mightn't be ascertaining we mightn't be ascertaining you mightn't be ascertaining they mightn't be ascertaining
Perfect
I mightn't have ascertained you mightn't have ascertained he mightn't have ascertained we mightn't have ascertained you mightn't have ascertained they mightn't have ascertained
V-ing perfect
I mightn't have been ascertaining you mightn't have been ascertaining he mightn't have been ascertaining we mightn't have been ascertaining you mightn't have been ascertaining they mightn't have been ascertaining
Interrogative form
Simple form
might I ascertain? might you ascertain? might he ascertain? might we ascertain? might you ascertain? might they ascertain?
V-ing form
might I be ascertaining? might you be ascertaining? might he be ascertaining? might we be ascertaining? might you be ascertaining? might they be ascertaining?
Perfect
might I have ascertained? might you have ascertained? might he have ascertained? might we have ascertained? might you have ascertained? might they have ascertained?
V-ing perfect
might I have been ascertaining? might you have been ascertaining? might he have been ascertaining? might we have been ascertaining? might you have been ascertaining? might they have been ascertaining?
Interro-negative form
Simple form
mightn't I ascertain? mightn't you ascertain? mightn't he ascertain? mightn't we ascertain? mightn't you ascertain? mightn't they ascertain?
V-ing form
mightn't I be ascertaining? mightn't you be ascertaining? mightn't he be ascertaining? mightn't we be ascertaining? mightn't you be ascertaining? mightn't they be ascertaining?
Perfect
mightn't I have ascertained? mightn't you have ascertained? mightn't he have ascertained? mightn't we have ascertained? mightn't you have ascertained? mightn't they have ascertained?
V-ing perfect
mightn't I have been ascertaining? mightn't you have been ascertaining? mightn't he have been ascertaining? mightn't we have been ascertaining? mightn't you have been ascertaining? mightn't they have been ascertaining?