should alternate
Verbo regular: alternate - alternated- alternated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I'd alternate
you'd alternate
he'd alternate
we'd alternate
you'd alternate
they'd alternate 	I'd be alternating
you'd be alternating
he'd be alternating
we'd be alternating
you'd be alternating
they'd be alternating	I should've alternated
you should've alternated
he should've alternated
we should've alternated
you should've alternated
they should've alternated	I should've been alternating
you should've been alternating
he should've been alternating
we should've been alternating
you should've been alternating
they should've been alternating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I shouldn't alternate
you shouldn't alternate
he shouldn't alternate
we shouldn't alternate
you shouldn't alternate
they shouldn't alternate 	I shouldn't be alternating
you shouldn't be alternating
he shouldn't be alternating
we shouldn't be alternating
you shouldn't be alternating
they shouldn't be alternating	I shouldn't have alternated
you shouldn't have alternated
he shouldn't have alternated
we shouldn't have alternated
you shouldn't have alternated
they shouldn't have alternated	I shouldn't have been alternating
you shouldn't have been alternating
he shouldn't have been alternating
we shouldn't have been alternating
you shouldn't have been alternating
they shouldn't have been alternating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I alternate?
should you alternate?
should he alternate?
should we alternate?
should you alternate?
should they alternate? 	should I be alternating?
should you be alternating?
should he be alternating?
should we be alternating?
should you be alternating?
should they be alternating? 	should I have alternated?
should you have alternated?
should he have alternated?
should we have alternated?
should you have alternated?
should they have alternated? 	should I have been alternating?
should you have been alternating?
should he have been alternating?
should we have been alternating?
should you have been alternating?
should they have been alternating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
shouldn't I alternate?
shouldn't you alternate?
shouldn't he alternate?
shouldn't we alternate?
shouldn't you alternate?
shouldn't they alternate? 	shouldn't I be alternating?
shouldn't you be alternating?
shouldn't he be alternating?
shouldn't we be alternating?
shouldn't you be alternating?
shouldn't they be alternating? 	shouldn't I have alternated?
shouldn't you have alternated?
shouldn't he have alternated?
shouldn't we have alternated?
shouldn't you have alternated?
shouldn't they have alternated? 	shouldn't I have been alternating?
shouldn't you have been alternating?
shouldn't he have been alternating?
shouldn't we have been alternating?
shouldn't you have been alternating?
shouldn't they have been alternating?