should undo
Verbo irregular: undo - undid- undone

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should undo
you should undo
he should undo
we should undo
you should undo
they should undo 	I should be undoing
you should be undoing
he should be undoing
we should be undoing
you should be undoing
they should be undoing	I should have undone
you should have undone
he should have undone
we should have undone
you should have undone
they should have undone	I should have been undoing
you should have been undoing
he should have been undoing
we should have been undoing
you should have been undoing
they should have been undoing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not undo
you should not undo
he should not undo
we should not undo
you should not undo
they should not undo 	I should not be undoing
you should not be undoing
he should not be undoing
we should not be undoing
you should not be undoing
they should not be undoing	I should not have undone
you should not have undone
he should not have undone
we should not have undone
you should not have undone
they should not have undone	I should not have been undoing
you should not have been undoing
he should not have been undoing
we should not have been undoing
you should not have been undoing
they should not have been undoing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I undo?
should you undo?
should he undo?
should we undo?
should you undo?
should they undo? 	should I be undoing?
should you be undoing?
should he be undoing?
should we be undoing?
should you be undoing?
should they be undoing? 	should I have undone?
should you have undone?
should he 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 he 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 	
should I not undo?
should you not undo?
should he not undo?
should we not undo?
should you not undo?
should they not undo? 	should I not be undoing?
should you not be undoing?
should he not be undoing?
should we not be undoing?
should you not be undoing?
should they not be undoing? 	should I not have undone?
should you not have undone?
should he not have undone?
should we not have undone?
should you not have undone?
should they not have undone? 	should I not have been undoing?
should you not have been undoing?
should he not have been undoing?
should we not have been undoing?
should you not have been undoing?
should they not have been undoing?