should decay
Verbo regular: decay - decayed- decayed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'd decay
you'd decay
she'd decay
we'd decay
you'd decay
they'd decay 	I'd be decaying
you'd be decaying
she'd be decaying
we'd be decaying
you'd be decaying
they'd be decaying	I should've decayed
you should've decayed
she should've decayed
we should've decayed
you should've decayed
they should've decayed	I should've been decaying
you should've been decaying
she should've been decaying
we should've been decaying
you should've been decaying
they should've been decaying	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shouldn't decay
you shouldn't decay
she shouldn't decay
we shouldn't decay
you shouldn't decay
they shouldn't decay 	I shouldn't be decaying
you shouldn't be decaying
she shouldn't be decaying
we shouldn't be decaying
you shouldn't be decaying
they shouldn't be decaying	I shouldn't have decayed
you shouldn't have decayed
she shouldn't have decayed
we shouldn't have decayed
you shouldn't have decayed
they shouldn't have decayed	I shouldn't have been decaying
you shouldn't have been decaying
she shouldn't have been decaying
we shouldn't have been decaying
you shouldn't have been decaying
they shouldn't have been decaying	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I decay?
should you decay?
should she decay?
should we decay?
should you decay?
should they decay? 	should I be decaying?
should you be decaying?
should she be decaying?
should we be decaying?
should you be decaying?
should they be decaying? 	should I have decayed?
should you have decayed?
should she have decayed?
should we have decayed?
should you have decayed?
should they have decayed? 	should I have been decaying?
should you have been decaying?
should she have been decaying?
should we have been decaying?
should you have been decaying?
should they have been decaying? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shouldn't I decay?
shouldn't you decay?
shouldn't she decay?
shouldn't we decay?
shouldn't you decay?
shouldn't they decay? 	shouldn't I be decaying?
shouldn't you be decaying?
shouldn't she be decaying?
shouldn't we be decaying?
shouldn't you be decaying?
shouldn't they be decaying? 	shouldn't I have decayed?
shouldn't you have decayed?
shouldn't she have decayed?
shouldn't we have decayed?
shouldn't you have decayed?
shouldn't they have decayed? 	shouldn't I have been decaying?
shouldn't you have been decaying?
shouldn't she have been decaying?
shouldn't we have been decaying?
shouldn't you have been decaying?
shouldn't they have been decaying?