could iris
Regular verb: iris - irised- irised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could iris
you could iris
he could iris
we could iris
you could iris
they could iris 	I could be irising
you could be irising
he could be irising
we could be irising
you could be irising
they could be irising	I could have irised
you could have irised
he could have irised
we could have irised
you could have irised
they could have irised	I could have been irising
you could have been irising
he could have been irising
we could have been irising
you could have been irising
they could have been irising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not iris
you could not iris
he could not iris
we could not iris
you could not iris
they could not iris 	I could not be irising
you could not be irising
he could not be irising
we could not be irising
you could not be irising
they could not be irising	I could not have irised
you could not have irised
he could not have irised
we could not have irised
you could not have irised
they could not have irised	I could not have been irising
you could not have been irising
he could not have been irising
we could not have been irising
you could not have been irising
they could not have been irising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I iris?
could you iris?
could he iris?
could we iris?
could you iris?
could they iris? 	could I be irising?
could you be irising?
could he be irising?
could we be irising?
could you be irising?
could they be irising? 	could I have irised?
could you have irised?
could he have irised?
could we have irised?
could you have irised?
could they have irised? 	could I have been irising?
could you have been irising?
could he have been irising?
could we have been irising?
could you have been irising?
could they have been irising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not iris?
could you not iris?
could he not iris?
could we not iris?
could you not iris?
could they not iris? 	could I not be irising?
could you not be irising?
could he not be irising?
could we not be irising?
could you not be irising?
could they not be irising? 	could I not have irised?
could you not have irised?
could he not have irised?
could we not have irised?
could you not have irised?
could they not have irised? 	could I not have been irising?
could you not have been irising?
could he not have been irising?
could we not have been irising?
could you not have been irising?
could they not have been irising?