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