English verb conjugation
MIGHT SUM

Regular verb: sum - summed - summed

Affirmation

Simple form	V-ing form
I might sum you might sum he might sum we might sum you might sum they might sum	I might be summing you might be summing he might be summing we might be summing you might be summing they might be summing
Perfect	V-ing perfect
I might have summed you might have summed he might have summed we might have summed you might have summed they might have summed	I might have been summing you might have been summing he might have been summing we might have been summing you might have been summing they might have been summing

Negation

Simple form	V-ing form
I mightn't sum you mightn't sum he mightn't sum we mightn't sum you mightn't sum they mightn't sum	I mightn't be summing you mightn't be summing he mightn't be summing we mightn't be summing you mightn't be summing they mightn't be summing
Perfect	V-ing perfect
I mightn't have summed you mightn't have summed he mightn't have summed we mightn't have summed you mightn't have summed they mightn't have summed	I mightn't have been summing you mightn't have been summing he mightn't have been summing we mightn't have been summing you mightn't have been summing they mightn't have been summing

Interrogative form

Simple form	V-ing form
might I sum? might you sum? might he sum? might we sum? might you sum? might they sum?	might I be summing? might you be summing? might he be summing? might we be summing? might you be summing? might they be summing?
Perfect	V-ing perfect
might I have summed? might you have summed? might he have summed? might we have summed? might you have summed? might they have summed?	might I have been summing? might you have been summing? might he have been summing? might we have been summing? might you have been summing? might they have been summing?

Interro-negative form

Simple form	V-ing form
mightn't I sum? mightn't you sum? mightn't he sum? mightn't we sum? mightn't you sum? mightn't they sum?	mightn't I be summing? mightn't you be summing? mightn't he be summing? mightn't we be summing? mightn't you be summing? mightn't they be summing?
Perfect	V-ing perfect
mightn't I have summed? mightn't you have summed? mightn't he have summed? mightn't we have summed? mightn't you have summed? mightn't they have summed?	mightn't I have been summing? mightn't you have been summing? mightn't he have been summing? mightn't we have been summing? mightn't you have been summing? mightn't they have been summing?