could suck
Verbo regular: suck - sucked- sucked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could suck
you could suck
he could suck
we could suck
you could suck
they could suck 	I could be sucking
you could be sucking
he could be sucking
we could be sucking
you could be sucking
they could be sucking	I could have sucked
you could have sucked
he could have sucked
we could have sucked
you could have sucked
they could have sucked	I could have been sucking
you could have been sucking
he could have been sucking
we could have been sucking
you could have been sucking
they could have been sucking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't suck
you couldn't suck
he couldn't suck
we couldn't suck
you couldn't suck
they couldn't suck 	I couldn't be sucking
you couldn't be sucking
he couldn't be sucking
we couldn't be sucking
you couldn't be sucking
they couldn't be sucking	I couldn't have sucked
you couldn't have sucked
he couldn't have sucked
we couldn't have sucked
you couldn't have sucked
they couldn't have sucked	I couldn't have been sucking
you couldn't have been sucking
he couldn't have been sucking
we couldn't have been sucking
you couldn't have been sucking
they couldn't have been sucking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I suck?
could you suck?
could he suck?
could we suck?
could you suck?
could they suck? 	could I be sucking?
could you be sucking?
could he be sucking?
could we be sucking?
could you be sucking?
could they be sucking? 	could I have sucked?
could you have sucked?
could he have sucked?
could we have sucked?
could you have sucked?
could they have sucked? 	could I have been sucking?
could you have been sucking?
could he have been sucking?
could we have been sucking?
could you have been sucking?
could they have been sucking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I suck?
couldn't you suck?
couldn't he suck?
couldn't we suck?
couldn't you suck?
couldn't they suck? 	couldn't I be sucking?
couldn't you be sucking?
couldn't he be sucking?
couldn't we be sucking?
couldn't you be sucking?
couldn't they be sucking? 	couldn't I have sucked?
couldn't you have sucked?
couldn't he have sucked?
couldn't we have sucked?
couldn't you have sucked?
couldn't they have sucked? 	couldn't I have been sucking?
couldn't you have been sucking?
couldn't he have been sucking?
couldn't we have been sucking?
couldn't you have been sucking?
couldn't they have been sucking?