English verb conjugation
COULD RUDDLE

Regular verb: ruddle - ruddled - ruddled

Affirmation

Simple form	V-ing form
I could ruddle you could ruddle he could ruddle we could ruddle you could ruddle they could ruddle	I could be ruddling you could be ruddling he could be ruddling we could be ruddling you could be ruddling they could be ruddling
Perfect	V-ing perfect
I could have ruddled you could have ruddled he could have ruddled we could have ruddled you could have ruddled they could have ruddled	I could have been ruddling you could have been ruddling he could have been ruddling we could have been ruddling you could have been ruddling they could have been ruddling

Negation

Simple form	V-ing form
I could not ruddle you could not ruddle he could not ruddle we could not ruddle you could not ruddle they could not ruddle	I could not be ruddling you could not be ruddling he could not be ruddling we could not be ruddling you could not be ruddling they could not be ruddling
Perfect	V-ing perfect
I could not have ruddled you could not have ruddled he could not have ruddled we could not have ruddled you could not have ruddled they could not have ruddled	I could not have been ruddling you could not have been ruddling he could not have been ruddling we could not have been ruddling you could not have been ruddling they could not have been ruddling

Interrogative form

Simple form	V-ing form
could I ruddle? could you ruddle? could he ruddle? could we ruddle? could you ruddle? could they ruddle?	could I be ruddling? could you be ruddling? could he be ruddling? could we be ruddling? could you be ruddling? could they be ruddling?
Perfect	V-ing perfect
could I have ruddled? could you have ruddled? could he have ruddled? could we have ruddled? could you have ruddled? could they have ruddled?	could I have been ruddling? could you have been ruddling? could he have been ruddling? could we have been ruddling? could you have been ruddling? could they have been ruddling?

Interro-negative form

Simple form	V-ing form
could I not ruddle? could you not ruddle? could he not ruddle? could we not ruddle? could you not ruddle? could they not ruddle?	could I not be ruddling? could you not be ruddling? could he not be ruddling? could we not be ruddling? could you not be ruddling? could they not be ruddling?
Perfect	V-ing perfect
could I not have ruddled? could you not have ruddled? could he not have ruddled? could we not have ruddled? could you not have ruddled? could they not have ruddled?	could I not have been ruddling? could you not have been ruddling? could he not have been ruddling? could we not have been ruddling? could you not have been ruddling? could they not have been ruddling?