could interact
Regular verb: interact - interacted- interacted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could interact
you could interact
she could interact
we could interact
you could interact
they could interact 	I could be interacting
you could be interacting
she could be interacting
we could be interacting
you could be interacting
they could be interacting	I could have interacted
you could have interacted
she 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
she could have been interacting
we could have been interacting
you could have been interacting
they could have been interacting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't interact
you couldn't interact
she 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
she 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
she 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
she couldn't have been interacting
we couldn't have been interacting
you couldn't have been interacting
they couldn't have been interacting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I interact?
could you interact?
could she interact?
could we interact?
could you interact?
could they interact? 	could I be interacting?
could you be interacting?
could she be interacting?
could we be interacting?
could you be interacting?
could they be interacting? 	could I have interacted?
could you have interacted?
could she 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 she have been interacting?
could we have been interacting?
could you have been interacting?
could they have been interacting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I interact?
couldn't you interact?
couldn't she 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 she 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 she 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 she have been interacting?
couldn't we have been interacting?
couldn't you have been interacting?
couldn't they have been interacting?