English verb conjugation
COULD ROW

Regular verb: row - rowed - rowed

Affirmation

Simple form	V-ing form
I could row you could row he could row we could row you could row they could row	I could be rowing you could be rowing he could be rowing we could be rowing you could be rowing they could be rowing
Perfect	V-ing perfect
I could have rowed you could have rowed he could have rowed we could have rowed you could have rowed they could have rowed	I could have been rowing you could have been rowing he could have been rowing we could have been rowing you could have been rowing they could have been rowing

Negation

Simple form	V-ing form
I could not row you could not row he could not row we could not row you could not row they could not row	I could not be rowing you could not be rowing he could not be rowing we could not be rowing you could not be rowing they could not be rowing
Perfect	V-ing perfect
I could not have rowed you could not have rowed he could not have rowed we could not have rowed you could not have rowed they could not have rowed	I could not have been rowing you could not have been rowing he could not have been rowing we could not have been rowing you could not have been rowing they could not have been rowing

Interrogative form

Simple form	V-ing form
could I row? could you row? could he row? could we row? could you row? could they row?	could I be rowing? could you be rowing? could he be rowing? could we be rowing? could you be rowing? could they be rowing?
Perfect	V-ing perfect
could I have rowed? could you have rowed? could he have rowed? could we have rowed? could you have rowed? could they have rowed?	could I have been rowing? could you have been rowing? could he have been rowing? could we have been rowing? could you have been rowing? could they have been rowing?

Interro-negative form

Simple form	V-ing form
could I not row? could you not row? could he not row? could we not row? could you not row? could they not row?	could I not be rowing? could you not be rowing? could he not be rowing? could we not be rowing? could you not be rowing? could they not be rowing?
Perfect	V-ing perfect
could I not have rowed? could you not have rowed? could he not have rowed? could we not have rowed? could you not have rowed? could they not have rowed?	could I not have been rowing? could you not have been rowing? could he not have been rowing? could we not have been rowing? could you not have been rowing? could they not have been rowing?