English verb conjugation
COULD ACCUSE

Regular verb: accuse - accused - accused

Affirmation

Simple form	V-ing form
I could accuse you could accuse he could accuse we could accuse you could accuse they could accuse	I could be accusing you could be accusing he could be accusing we could be accusing you could be accusing they could be accusing
Perfect	V-ing perfect
I could have accused you could have accused he could have accused we could have accused you could have accused they could have accused	I could have been accusing you could have been accusing he could have been accusing we could have been accusing you could have been accusing they could have been accusing

Negation

Simple form	V-ing form
I couldn't accuse you couldn't accuse he couldn't accuse we couldn't accuse you couldn't accuse they couldn't accuse	I couldn't be accusing you couldn't be accusing he couldn't be accusing we couldn't be accusing you couldn't be accusing they couldn't be accusing
Perfect	V-ing perfect
I couldn't have accused you couldn't have accused he couldn't have accused we couldn't have accused you couldn't have accused they couldn't have accused	I couldn't have been accusing you couldn't have been accusing he couldn't have been accusing we couldn't have been accusing you couldn't have been accusing they couldn't have been accusing

Interrogative form

Simple form	V-ing form
could I accuse? could you accuse? could he accuse? could we accuse? could you accuse? could they accuse?	could I be accusing? could you be accusing? could he be accusing? could we be accusing? could you be accusing? could they be accusing?
Perfect	V-ing perfect
could I have accused? could you have accused? could he have accused? could we have accused? could you have accused? could they have accused?	could I have been accusing? could you have been accusing? could he have been accusing? could we have been accusing? could you have been accusing? could they have been accusing?

Interro-negative form

Simple form	V-ing form
couldn't I accuse? couldn't you accuse? couldn't he accuse? couldn't we accuse? couldn't you accuse? couldn't they accuse?	couldn't I be accusing? couldn't you be accusing? couldn't he be accusing? couldn't we be accusing? couldn't you be accusing? couldn't they be accusing?
Perfect	V-ing perfect
couldn't I have accused? couldn't you have accused? couldn't he have accused? couldn't we have accused? couldn't you have accused? couldn't they have accused?	couldn't I have been accusing? couldn't you have been accusing? couldn't he have been accusing? couldn't we have been accusing? couldn't you have been accusing? couldn't they have been accusing?