could cram
Verbo regular: cram - crammed- crammed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could cram
you could cram
he could cram
we could cram
you could cram
they could cram 	I could be cramming
you could be cramming
he could be cramming
we could be cramming
you could be cramming
they could be cramming	I could have crammed
you could have crammed
he could have crammed
we could have crammed
you could have crammed
they could have crammed	I could have been cramming
you could have been cramming
he could have been cramming
we could have been cramming
you could have been cramming
they could have been cramming	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't cram
you couldn't cram
he couldn't cram
we couldn't cram
you couldn't cram
they couldn't cram 	I couldn't be cramming
you couldn't be cramming
he couldn't be cramming
we couldn't be cramming
you couldn't be cramming
they couldn't be cramming	I couldn't have crammed
you couldn't have crammed
he couldn't have crammed
we couldn't have crammed
you couldn't have crammed
they couldn't have crammed	I couldn't have been cramming
you couldn't have been cramming
he couldn't have been cramming
we couldn't have been cramming
you couldn't have been cramming
they couldn't have been cramming	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I cram?
could you cram?
could he cram?
could we cram?
could you cram?
could they cram? 	could I be cramming?
could you be cramming?
could he be cramming?
could we be cramming?
could you be cramming?
could they be cramming? 	could I have crammed?
could you have crammed?
could he have crammed?
could we have crammed?
could you have crammed?
could they have crammed? 	could I have been cramming?
could you have been cramming?
could he have been cramming?
could we have been cramming?
could you have been cramming?
could they have been cramming? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I cram?
couldn't you cram?
couldn't he cram?
couldn't we cram?
couldn't you cram?
couldn't they cram? 	couldn't I be cramming?
couldn't you be cramming?
couldn't he be cramming?
couldn't we be cramming?
couldn't you be cramming?
couldn't they be cramming? 	couldn't I have crammed?
couldn't you have crammed?
couldn't he have crammed?
couldn't we have crammed?
couldn't you have crammed?
couldn't they have crammed? 	couldn't I have been cramming?
couldn't you have been cramming?
couldn't he have been cramming?
couldn't we have been cramming?
couldn't you have been cramming?
couldn't they have been cramming?