English verb conjugation
COULD CONTRADICT

Regular verb: contradict - contradicted - contradicted

Affirmation

Simple form	V-ing form
I could contradict you could contradict he could contradict we could contradict you could contradict they could contradict	I could be contradicting you could be contradicting he could be contradicting we could be contradicting you could be contradicting they could be contradicting
Perfect	V-ing perfect
I could have contradicted you could have contradicted he could have contradicted we could have contradicted you could have contradicted they could have contradicted	I could have been contradicting you could have been contradicting he could have been contradicting we could have been contradicting you could have been contradicting they could have been contradicting

Negation

Simple form	V-ing form
I couldn't contradict you couldn't contradict he couldn't contradict we couldn't contradict you couldn't contradict they couldn't contradict	I couldn't be contradicting you couldn't be contradicting he couldn't be contradicting we couldn't be contradicting you couldn't be contradicting they couldn't be contradicting
Perfect	V-ing perfect
I couldn't have contradicted you couldn't have contradicted he couldn't have contradicted we couldn't have contradicted you couldn't have contradicted they couldn't have contradicted	I couldn't have been contradicting you couldn't have been contradicting he couldn't have been contradicting we couldn't have been contradicting you couldn't have been contradicting they couldn't have been contradicting

Interrogative form

Simple form	V-ing form
could I contradict? could you contradict? could he contradict? could we contradict? could you contradict? could they contradict?	could I be contradicting? could you be contradicting? could he be contradicting? could we be contradicting? could you be contradicting? could they be contradicting?
Perfect	V-ing perfect
could I have contradicted? could you have contradicted? could he have contradicted? could we have contradicted? could you have contradicted? could they have contradicted?	could I have been contradicting? could you have been contradicting? could he have been contradicting? could we have been contradicting? could you have been contradicting? could they have been contradicting?

Interro-negative form

Simple form	V-ing form
couldn't I contradict? couldn't you contradict? couldn't he contradict? couldn't we contradict? couldn't you contradict? couldn't they contradict?	couldn't I be contradicting? couldn't you be contradicting? couldn't he be contradicting? couldn't we be contradicting? couldn't you be contradicting? couldn't they be contradicting?
Perfect	V-ing perfect
couldn't I have contradicted? couldn't you have contradicted? couldn't he have contradicted? couldn't we have contradicted? couldn't you have contradicted? couldn't they have contradicted?	couldn't I have been contradicting? couldn't you have been contradicting? couldn't he have been contradicting? couldn't we have been contradicting? couldn't you have been contradicting? couldn't they have been contradicting?