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