would backdate
Regular verb: backdate - backdated- backdated

Affirmation 	
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I'd backdate
you'd backdate
he'd backdate
we'd backdate
you'd backdate
they'd backdate 	I'd be backdating
you'd be backdating
he'd be backdating
we'd be backdating
you'd be backdating
they'd be backdating	I would've backdated
you would've backdated
he would've backdated
we would've backdated
you would've backdated
they would've backdated	I would've been backdating
you would've been backdating
he would've been backdating
we would've been backdating
you would've been backdating
they would've been backdating	

Negation 	
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I wouldn't backdate
you wouldn't backdate
he wouldn't backdate
we wouldn't backdate
you wouldn't backdate
they wouldn't backdate 	I wouldn't be backdating
you wouldn't be backdating
he wouldn't be backdating
we wouldn't be backdating
you wouldn't be backdating
they wouldn't be backdating	I wouldn't have backdated
you wouldn't have backdated
he wouldn't have backdated
we wouldn't have backdated
you wouldn't have backdated
they wouldn't have backdated	I wouldn't have been backdating
you wouldn't have been backdating
he wouldn't have been backdating
we wouldn't have been backdating
you wouldn't have been backdating
they wouldn't have been backdating	

Interrogative form 	
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would I backdate?
would you backdate?
would he backdate?
would we backdate?
would you backdate?
would they backdate? 	would I be backdating?
would you be backdating?
would he be backdating?
would we be backdating?
would you be backdating?
would they be backdating? 	would I have backdated?
would you have backdated?
would he have backdated?
would we have backdated?
would you have backdated?
would they have backdated? 	would I have been backdating?
would you have been backdating?
would he have been backdating?
would we have been backdating?
would you have been backdating?
would they have been backdating? 	

Interro-negative form 	
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wouldn't I backdate?
wouldn't you backdate?
wouldn't he backdate?
wouldn't we backdate?
wouldn't you backdate?
wouldn't they backdate? 	wouldn't I be backdating?
wouldn't you be backdating?
wouldn't he be backdating?
wouldn't we be backdating?
wouldn't you be backdating?
wouldn't they be backdating? 	wouldn't I have backdated?
wouldn't you have backdated?
wouldn't he have backdated?
wouldn't we have backdated?
wouldn't you have backdated?
wouldn't they have backdated? 	wouldn't I have been backdating?
wouldn't you have been backdating?
wouldn't he have been backdating?
wouldn't we have been backdating?
wouldn't you have been backdating?
wouldn't they have been backdating?