English verb conjugation
COULD INTONE

Regular verb: intone - intoned - intoned

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?