should abstain
Verbo regular: abstain - abstained- abstained

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'd abstain
you'd abstain
he'd abstain
we'd abstain
you'd abstain
they'd abstain 	I'd be abstaining
you'd be abstaining
he'd be abstaining
we'd be abstaining
you'd be abstaining
they'd be abstaining	I should've abstained
you should've abstained
he should've abstained
we should've abstained
you should've abstained
they should've abstained	I should've been abstaining
you should've been abstaining
he should've been abstaining
we should've been abstaining
you should've been abstaining
they should've been abstaining	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shouldn't abstain
you shouldn't abstain
he shouldn't abstain
we shouldn't abstain
you shouldn't abstain
they shouldn't abstain 	I shouldn't be abstaining
you shouldn't be abstaining
he shouldn't be abstaining
we shouldn't be abstaining
you shouldn't be abstaining
they shouldn't be abstaining	I shouldn't have abstained
you shouldn't have abstained
he shouldn't have abstained
we shouldn't have abstained
you shouldn't have abstained
they shouldn't have abstained	I shouldn't have been abstaining
you shouldn't have been abstaining
he shouldn't have been abstaining
we shouldn't have been abstaining
you shouldn't have been abstaining
they shouldn't have been abstaining	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I abstain?
should you abstain?
should he abstain?
should we abstain?
should you abstain?
should they abstain? 	should I be abstaining?
should you be abstaining?
should he be abstaining?
should we be abstaining?
should you be abstaining?
should they be abstaining? 	should I have abstained?
should you have abstained?
should he have abstained?
should we have abstained?
should you have abstained?
should they have abstained? 	should I have been abstaining?
should you have been abstaining?
should he have been abstaining?
should we have been abstaining?
should you have been abstaining?
should they have been abstaining? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shouldn't I abstain?
shouldn't you abstain?
shouldn't he abstain?
shouldn't we abstain?
shouldn't you abstain?
shouldn't they abstain? 	shouldn't I be abstaining?
shouldn't you be abstaining?
shouldn't he be abstaining?
shouldn't we be abstaining?
shouldn't you be abstaining?
shouldn't they be abstaining? 	shouldn't I have abstained?
shouldn't you have abstained?
shouldn't he have abstained?
shouldn't we have abstained?
shouldn't you have abstained?
shouldn't they have abstained? 	shouldn't I have been abstaining?
shouldn't you have been abstaining?
shouldn't he have been abstaining?
shouldn't we have been abstaining?
shouldn't you have been abstaining?
shouldn't they have been abstaining?