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