English verb conjugation
COULD DECREE

Regular verb: decree - decreed - decreed

Affirmation

Simple form	V-ing form
I could decree you could decree he could decree we could decree you could decree they could decree	I could be decreeing you could be decreeing he could be decreeing we could be decreeing you could be decreeing they could be decreeing
Perfect	V-ing perfect
I could have decreed you could have decreed he could have decreed we could have decreed you could have decreed they could have decreed	I could have been decreeing you could have been decreeing he could have been decreeing we could have been decreeing you could have been decreeing they could have been decreeing

Negation

Simple form	V-ing form
I couldn't decree you couldn't decree he couldn't decree we couldn't decree you couldn't decree they couldn't decree	I couldn't be decreeing you couldn't be decreeing he couldn't be decreeing we couldn't be decreeing you couldn't be decreeing they couldn't be decreeing
Perfect	V-ing perfect
I couldn't have decreed you couldn't have decreed he couldn't have decreed we couldn't have decreed you couldn't have decreed they couldn't have decreed	I couldn't have been decreeing you couldn't have been decreeing he couldn't have been decreeing we couldn't have been decreeing you couldn't have been decreeing they couldn't have been decreeing

Interrogative form

Simple form	V-ing form
could I decree? could you decree? could he decree? could we decree? could you decree? could they decree?	could I be decreeing? could you be decreeing? could he be decreeing? could we be decreeing? could you be decreeing? could they be decreeing?
Perfect	V-ing perfect
could I have decreed? could you have decreed? could he have decreed? could we have decreed? could you have decreed? could they have decreed?	could I have been decreeing? could you have been decreeing? could he have been decreeing? could we have been decreeing? could you have been decreeing? could they have been decreeing?

Interro-negative form

Simple form	V-ing form
couldn't I decree? couldn't you decree? couldn't he decree? couldn't we decree? couldn't you decree? couldn't they decree?	couldn't I be decreeing? couldn't you be decreeing? couldn't he be decreeing? couldn't we be decreeing? couldn't you be decreeing? couldn't they be decreeing?
Perfect	V-ing perfect
couldn't I have decreed? couldn't you have decreed? couldn't he have decreed? couldn't we have decreed? couldn't you have decreed? couldn't they have decreed?	couldn't I have been decreeing? couldn't you have been decreeing? couldn't he have been decreeing? couldn't we have been decreeing? couldn't you have been decreeing? couldn't they have been decreeing?