could intertangle
Regular verb: intertangle - intertangled- intertangled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could intertangle
you could intertangle
he could intertangle
we could intertangle
you could intertangle
they could intertangle 	I could be intertangling
you could be intertangling
he could be intertangling
we could be intertangling
you could be intertangling
they could be intertangling	I could have intertangled
you could have intertangled
he could have intertangled
we could have intertangled
you could have intertangled
they could have intertangled	I could have been intertangling
you could have been intertangling
he could have been intertangling
we could have been intertangling
you could have been intertangling
they could have been intertangling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't intertangle
you couldn't intertangle
he couldn't intertangle
we couldn't intertangle
you couldn't intertangle
they couldn't intertangle 	I couldn't be intertangling
you couldn't be intertangling
he couldn't be intertangling
we couldn't be intertangling
you couldn't be intertangling
they couldn't be intertangling	I couldn't have intertangled
you couldn't have intertangled
he couldn't have intertangled
we couldn't have intertangled
you couldn't have intertangled
they couldn't have intertangled	I couldn't have been intertangling
you couldn't have been intertangling
he couldn't have been intertangling
we couldn't have been intertangling
you couldn't have been intertangling
they couldn't have been intertangling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I intertangle?
could you intertangle?
could he intertangle?
could we intertangle?
could you intertangle?
could they intertangle? 	could I be intertangling?
could you be intertangling?
could he be intertangling?
could we be intertangling?
could you be intertangling?
could they be intertangling? 	could I have intertangled?
could you have intertangled?
could he have intertangled?
could we have intertangled?
could you have intertangled?
could they have intertangled? 	could I have been intertangling?
could you have been intertangling?
could he have been intertangling?
could we have been intertangling?
could you have been intertangling?
could they have been intertangling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I intertangle?
couldn't you intertangle?
couldn't he intertangle?
couldn't we intertangle?
couldn't you intertangle?
couldn't they intertangle? 	couldn't I be intertangling?
couldn't you be intertangling?
couldn't he be intertangling?
couldn't we be intertangling?
couldn't you be intertangling?
couldn't they be intertangling? 	couldn't I have intertangled?
couldn't you have intertangled?
couldn't he have intertangled?
couldn't we have intertangled?
couldn't you have intertangled?
couldn't they have intertangled? 	couldn't I have been intertangling?
couldn't you have been intertangling?
couldn't he have been intertangling?
couldn't we have been intertangling?
couldn't you have been intertangling?
couldn't they have been intertangling?