could interact
Verbo regular: interact - interacted- interacted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could interact
you could interact
he could interact
we could interact
you could interact
they could interact 	I could be interacting
you could be interacting
he could be interacting
we could be interacting
you could be interacting
they could be interacting	I could have interacted
you could have interacted
he could have interacted
we could have interacted
you could have interacted
they could have interacted	I could have been interacting
you could have been interacting
he could have been interacting
we could have been interacting
you could have been interacting
they could have been interacting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't interact
you couldn't interact
he couldn't interact
we couldn't interact
you couldn't interact
they couldn't interact 	I couldn't be interacting
you couldn't be interacting
he couldn't be interacting
we couldn't be interacting
you couldn't be interacting
they couldn't be interacting	I couldn't have interacted
you couldn't have interacted
he couldn't have interacted
we couldn't have interacted
you couldn't have interacted
they couldn't have interacted	I couldn't have been interacting
you couldn't have been interacting
he couldn't have been interacting
we couldn't have been interacting
you couldn't have been interacting
they couldn't have been interacting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I interact?
could you interact?
could he interact?
could we interact?
could you interact?
could they interact? 	could I be interacting?
could you be interacting?
could he be interacting?
could we be interacting?
could you be interacting?
could they be interacting? 	could I have interacted?
could you have interacted?
could he have interacted?
could we have interacted?
could you have interacted?
could they have interacted? 	could I have been interacting?
could you have been interacting?
could he have been interacting?
could we have been interacting?
could you have been interacting?
could they have been interacting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I interact?
couldn't you interact?
couldn't he interact?
couldn't we interact?
couldn't you interact?
couldn't they interact? 	couldn't I be interacting?
couldn't you be interacting?
couldn't he be interacting?
couldn't we be interacting?
couldn't you be interacting?
couldn't they be interacting? 	couldn't I have interacted?
couldn't you have interacted?
couldn't he have interacted?
couldn't we have interacted?
couldn't you have interacted?
couldn't they have interacted? 	couldn't I have been interacting?
couldn't you have been interacting?
couldn't he have been interacting?
couldn't we have been interacting?
couldn't you have been interacting?
couldn't they have been interacting?