English verb conjugation
MIGHT BACKDATE

Regular verb: backdate - backdated - backdated

Affirmation

Simple form	V-ing form
I might backdate you might backdate he might backdate we might backdate you might backdate they might backdate	I might be backdating you might be backdating he might be backdating we might be backdating you might be backdating they might be backdating
Perfect	V-ing perfect
I might have backdated you might have backdated he might have backdated we might have backdated you might have backdated they might have backdated	I might have been backdating you might have been backdating he might have been backdating we might have been backdating you might have been backdating they might have been backdating

Negation

Simple form	V-ing form
I mightn't backdate you mightn't backdate he mightn't backdate we mightn't backdate you mightn't backdate they mightn't backdate	I mightn't be backdating you mightn't be backdating he mightn't be backdating we mightn't be backdating you mightn't be backdating they mightn't be backdating
Perfect	V-ing perfect
I mightn't have backdated you mightn't have backdated he mightn't have backdated we mightn't have backdated you mightn't have backdated they mightn't have backdated	I mightn't have been backdating you mightn't have been backdating he mightn't have been backdating we mightn't have been backdating you mightn't have been backdating they mightn't have been backdating

Interrogative form

Simple form	V-ing form
might I backdate? might you backdate? might he backdate? might we backdate? might you backdate? might they backdate?	might I be backdating? might you be backdating? might he be backdating? might we be backdating? might you be backdating? might they be backdating?
Perfect	V-ing perfect
might I have backdated? might you have backdated? might he have backdated? might we have backdated? might you have backdated? might they have backdated?	might I have been backdating? might you have been backdating? might he have been backdating? might we have been backdating? might you have been backdating? might they have been backdating?

Interro-negative form

Simple form	V-ing form
mightn't I backdate? mightn't you backdate? mightn't he backdate? mightn't we backdate? mightn't you backdate? mightn't they backdate?	mightn't I be backdating? mightn't you be backdating? mightn't he be backdating? mightn't we be backdating? mightn't you be backdating? mightn't they be backdating?
Perfect	V-ing perfect
mightn't I have backdated? mightn't you have backdated? mightn't he have backdated? mightn't we have backdated? mightn't you have backdated? mightn't they have backdated?	mightn't I have been backdating? mightn't you have been backdating? mightn't he have been backdating? mightn't we have been backdating? mightn't you have been backdating? mightn't they have been backdating?