I might clean you might clean she might clean we might clean you might clean they might clean
V-ing form
I might be cleaning you might be cleaning she might be cleaning we might be cleaning you might be cleaning they might be cleaning
Perfect
I might have cleaned you might have cleaned she might have cleaned we might have cleaned you might have cleaned they might have cleaned
V-ing perfect
I might have been cleaning you might have been cleaning she might have been cleaning we might have been cleaning you might have been cleaning they might have been cleaning
Negation
Simple form
I mightn't clean you mightn't clean she mightn't clean we mightn't clean you mightn't clean they mightn't clean
V-ing form
I mightn't be cleaning you mightn't be cleaning she mightn't be cleaning we mightn't be cleaning you mightn't be cleaning they mightn't be cleaning
Perfect
I mightn't have cleaned you mightn't have cleaned she mightn't have cleaned we mightn't have cleaned you mightn't have cleaned they mightn't have cleaned
V-ing perfect
I mightn't have been cleaning you mightn't have been cleaning she mightn't have been cleaning we mightn't have been cleaning you mightn't have been cleaning they mightn't have been cleaning
Interrogative form
Simple form
might I clean? might you clean? might she clean? might we clean? might you clean? might they clean?
V-ing form
might I be cleaning? might you be cleaning? might she be cleaning? might we be cleaning? might you be cleaning? might they be cleaning?
Perfect
might I have cleaned? might you have cleaned? might she have cleaned? might we have cleaned? might you have cleaned? might they have cleaned?
V-ing perfect
might I have been cleaning? might you have been cleaning? might she have been cleaning? might we have been cleaning? might you have been cleaning? might they have been cleaning?
Interro-negative form
Simple form
mightn't I clean? mightn't you clean? mightn't she clean? mightn't we clean? mightn't you clean? mightn't they clean?
V-ing form
mightn't I be cleaning? mightn't you be cleaning? mightn't she be cleaning? mightn't we be cleaning? mightn't you be cleaning? mightn't they be cleaning?
Perfect
mightn't I have cleaned? mightn't you have cleaned? mightn't she have cleaned? mightn't we have cleaned? mightn't you have cleaned? mightn't they have cleaned?
V-ing perfect
mightn't I have been cleaning? mightn't you have been cleaning? mightn't she have been cleaning? mightn't we have been cleaning? mightn't you have been cleaning? mightn't they have been cleaning?