should undo
Verbo irregular: undo - undid- undone

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I'd undo
you'd undo
she'd undo
we'd undo
you'd undo
they'd undo 	I'd be undoing
you'd be undoing
she'd be undoing
we'd be undoing
you'd be undoing
they'd be undoing	I should've undone
you should've undone
she should've undone
we should've undone
you should've undone
they should've undone	I should've been undoing
you should've been undoing
she should've been undoing
we should've been undoing
you should've been undoing
they should've been undoing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I shouldn't undo
you shouldn't undo
she shouldn't undo
we shouldn't undo
you shouldn't undo
they shouldn't undo 	I shouldn't be undoing
you shouldn't be undoing
she shouldn't be undoing
we shouldn't be undoing
you shouldn't be undoing
they shouldn't be undoing	I shouldn't have undone
you shouldn't have undone
she shouldn't have undone
we shouldn't have undone
you shouldn't have undone
they shouldn't have undone	I shouldn't have been undoing
you shouldn't have been undoing
she shouldn't have been undoing
we shouldn't have been undoing
you shouldn't have been undoing
they shouldn't have been undoing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I undo?
should you undo?
should she undo?
should we undo?
should you undo?
should they undo? 	should I be undoing?
should you be undoing?
should she be undoing?
should we be undoing?
should you be undoing?
should they be undoing? 	should I have undone?
should you have undone?
should she have undone?
should we have undone?
should you have undone?
should they have undone? 	should I have been undoing?
should you have been undoing?
should she have been undoing?
should we have been undoing?
should you have been undoing?
should they have been undoing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
shouldn't I undo?
shouldn't you undo?
shouldn't she undo?
shouldn't we undo?
shouldn't you undo?
shouldn't they undo? 	shouldn't I be undoing?
shouldn't you be undoing?
shouldn't she be undoing?
shouldn't we be undoing?
shouldn't you be undoing?
shouldn't they be undoing? 	shouldn't I have undone?
shouldn't you have undone?
shouldn't she have undone?
shouldn't we have undone?
shouldn't you have undone?
shouldn't they have undone? 	shouldn't I have been undoing?
shouldn't you have been undoing?
shouldn't she have been undoing?
shouldn't we have been undoing?
shouldn't you have been undoing?
shouldn't they have been undoing?