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