could intone
Regular verb: intone - intoned- intoned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could intone
you could intone
he could intone
we could intone
you could intone
they could intone 	I could be intoning
you could be intoning
he could be intoning
we could be intoning
you could be intoning
they could be intoning	I could have intoned
you could have intoned
he could have intoned
we could have intoned
you could have intoned
they could have intoned	I could have been intoning
you could have been intoning
he could have been intoning
we could have been intoning
you could have been intoning
they could have been intoning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't intone
you couldn't intone
he couldn't intone
we couldn't intone
you couldn't intone
they couldn't intone 	I couldn't be intoning
you couldn't be intoning
he couldn't be intoning
we couldn't be intoning
you couldn't be intoning
they couldn't be intoning	I couldn't have intoned
you couldn't have intoned
he couldn't have intoned
we couldn't have intoned
you couldn't have intoned
they couldn't have intoned	I couldn't have been intoning
you couldn't have been intoning
he couldn't have been intoning
we couldn't have been intoning
you couldn't have been intoning
they couldn't have been intoning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I intone?
could you intone?
could he intone?
could we intone?
could you intone?
could they intone? 	could I be intoning?
could you be intoning?
could he be intoning?
could we be intoning?
could you be intoning?
could they be intoning? 	could I have intoned?
could you have intoned?
could he have intoned?
could we have intoned?
could you have intoned?
could they have intoned? 	could I have been intoning?
could you have been intoning?
could he have been intoning?
could we have been intoning?
could you have been intoning?
could they have been intoning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I intone?
couldn't you intone?
couldn't he intone?
couldn't we intone?
couldn't you intone?
couldn't they intone? 	couldn't I be intoning?
couldn't you be intoning?
couldn't he be intoning?
couldn't we be intoning?
couldn't you be intoning?
couldn't they be intoning? 	couldn't I have intoned?
couldn't you have intoned?
couldn't he have intoned?
couldn't we have intoned?
couldn't you have intoned?
couldn't they have intoned? 	couldn't I have been intoning?
couldn't you have been intoning?
couldn't he have been intoning?
couldn't we have been intoning?
couldn't you have been intoning?
couldn't they have been intoning?