I might double-check you might double-check she might double-check we might double-check you might double-check they might double-check
V-ing form
I might be double-checking you might be double-checking she might be double-checking we might be double-checking you might be double-checking they might be double-checking
Perfect
I might have double-checked you might have double-checked she might have double-checked we might have double-checked you might have double-checked they might have double-checked
V-ing perfect
I might have been double-checking you might have been double-checking she might have been double-checking we might have been double-checking you might have been double-checking they might have been double-checking
Negation
Simple form
I mightn't double-check you mightn't double-check she mightn't double-check we mightn't double-check you mightn't double-check they mightn't double-check
V-ing form
I mightn't be double-checking you mightn't be double-checking she mightn't be double-checking we mightn't be double-checking you mightn't be double-checking they mightn't be double-checking
Perfect
I mightn't have double-checked you mightn't have double-checked she mightn't have double-checked we mightn't have double-checked you mightn't have double-checked they mightn't have double-checked
V-ing perfect
I mightn't have been double-checking you mightn't have been double-checking she mightn't have been double-checking we mightn't have been double-checking you mightn't have been double-checking they mightn't have been double-checking
Interrogative form
Simple form
might I double-check? might you double-check? might she double-check? might we double-check? might you double-check? might they double-check?
V-ing form
might I be double-checking? might you be double-checking? might she be double-checking? might we be double-checking? might you be double-checking? might they be double-checking?
Perfect
might I have double-checked? might you have double-checked? might she have double-checked? might we have double-checked? might you have double-checked? might they have double-checked?
V-ing perfect
might I have been double-checking? might you have been double-checking? might she have been double-checking? might we have been double-checking? might you have been double-checking? might they have been double-checking?
Interro-negative form
Simple form
mightn't I double-check? mightn't you double-check? mightn't she double-check? mightn't we double-check? mightn't you double-check? mightn't they double-check?
V-ing form
mightn't I be double-checking? mightn't you be double-checking? mightn't she be double-checking? mightn't we be double-checking? mightn't you be double-checking? mightn't they be double-checking?
Perfect
mightn't I have double-checked? mightn't you have double-checked? mightn't she have double-checked? mightn't we have double-checked? mightn't you have double-checked? mightn't they have double-checked?
V-ing perfect
mightn't I have been double-checking? mightn't you have been double-checking? mightn't she have been double-checking? mightn't we have been double-checking? mightn't you have been double-checking? mightn't they have been double-checking?