English verb conjugation
COULD DENOUNCE

Regular verb: denounce - denounced - denounced

Affirmation

Simple form	V-ing form
I could denounce you could denounce she could denounce we could denounce you could denounce they could denounce	I could be denouncing you could be denouncing she could be denouncing we could be denouncing you could be denouncing they could be denouncing
Perfect	V-ing perfect
I could have denounced you could have denounced she could have denounced we could have denounced you could have denounced they could have denounced	I could have been denouncing you could have been denouncing she could have been denouncing we could have been denouncing you could have been denouncing they could have been denouncing

Negation

Simple form	V-ing form
I couldn't denounce you couldn't denounce she couldn't denounce we couldn't denounce you couldn't denounce they couldn't denounce	I couldn't be denouncing you couldn't be denouncing she couldn't be denouncing we couldn't be denouncing you couldn't be denouncing they couldn't be denouncing
Perfect	V-ing perfect
I couldn't have denounced you couldn't have denounced she couldn't have denounced we couldn't have denounced you couldn't have denounced they couldn't have denounced	I couldn't have been denouncing you couldn't have been denouncing she couldn't have been denouncing we couldn't have been denouncing you couldn't have been denouncing they couldn't have been denouncing

Interrogative form

Simple form	V-ing form
could I denounce? could you denounce? could she denounce? could we denounce? could you denounce? could they denounce?	could I be denouncing? could you be denouncing? could she be denouncing? could we be denouncing? could you be denouncing? could they be denouncing?
Perfect	V-ing perfect
could I have denounced? could you have denounced? could she have denounced? could we have denounced? could you have denounced? could they have denounced?	could I have been denouncing? could you have been denouncing? could she have been denouncing? could we have been denouncing? could you have been denouncing? could they have been denouncing?

Interro-negative form

Simple form	V-ing form
couldn't I denounce? couldn't you denounce? couldn't she denounce? couldn't we denounce? couldn't you denounce? couldn't they denounce?	couldn't I be denouncing? couldn't you be denouncing? couldn't she be denouncing? couldn't we be denouncing? couldn't you be denouncing? couldn't they be denouncing?
Perfect	V-ing perfect
couldn't I have denounced? couldn't you have denounced? couldn't she have denounced? couldn't we have denounced? couldn't you have denounced? couldn't they have denounced?	couldn't I have been denouncing? couldn't you have been denouncing? couldn't she have been denouncing? couldn't we have been denouncing? couldn't you have been denouncing? couldn't they have been denouncing?