could interchain
Verbo regular: interchain - interchained- interchained

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could interchain
you could interchain
he could interchain
we could interchain
you could interchain
they could interchain 	I could be interchaining
you could be interchaining
he could be interchaining
we could be interchaining
you could be interchaining
they could be interchaining	I could have interchained
you could have interchained
he could have interchained
we could have interchained
you could have interchained
they could have interchained	I could have been interchaining
you could have been interchaining
he could have been interchaining
we could have been interchaining
you could have been interchaining
they could have been interchaining	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't interchain
you couldn't interchain
he couldn't interchain
we couldn't interchain
you couldn't interchain
they couldn't interchain 	I couldn't be interchaining
you couldn't be interchaining
he couldn't be interchaining
we couldn't be interchaining
you couldn't be interchaining
they couldn't be interchaining	I couldn't have interchained
you couldn't have interchained
he couldn't have interchained
we couldn't have interchained
you couldn't have interchained
they couldn't have interchained	I couldn't have been interchaining
you couldn't have been interchaining
he couldn't have been interchaining
we couldn't have been interchaining
you couldn't have been interchaining
they couldn't have been interchaining	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I interchain?
could you interchain?
could he interchain?
could we interchain?
could you interchain?
could they interchain? 	could I be interchaining?
could you be interchaining?
could he be interchaining?
could we be interchaining?
could you be interchaining?
could they be interchaining? 	could I have interchained?
could you have interchained?
could he have interchained?
could we have interchained?
could you have interchained?
could they have interchained? 	could I have been interchaining?
could you have been interchaining?
could he have been interchaining?
could we have been interchaining?
could you have been interchaining?
could they have been interchaining? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I interchain?
couldn't you interchain?
couldn't he interchain?
couldn't we interchain?
couldn't you interchain?
couldn't they interchain? 	couldn't I be interchaining?
couldn't you be interchaining?
couldn't he be interchaining?
couldn't we be interchaining?
couldn't you be interchaining?
couldn't they be interchaining? 	couldn't I have interchained?
couldn't you have interchained?
couldn't he have interchained?
couldn't we have interchained?
couldn't you have interchained?
couldn't they have interchained? 	couldn't I have been interchaining?
couldn't you have been interchaining?
couldn't he have been interchaining?
couldn't we have been interchaining?
couldn't you have been interchaining?
couldn't they have been interchaining?