English verb conjugation
COULD OINK

Regular verb: oink - oinked - oinked

Affirmation

Simple form	V-ing form
I could oink you could oink she could oink we could oink you could oink they could oink	I could be oinking you could be oinking she could be oinking we could be oinking you could be oinking they could be oinking
Perfect	V-ing perfect
I could have oinked you could have oinked she could have oinked we could have oinked you could have oinked they could have oinked	I could have been oinking you could have been oinking she could have been oinking we could have been oinking you could have been oinking they could have been oinking

Negation

Simple form	V-ing form
I could not oink you could not oink she could not oink we could not oink you could not oink they could not oink	I could not be oinking you could not be oinking she could not be oinking we could not be oinking you could not be oinking they could not be oinking
Perfect	V-ing perfect
I could not have oinked you could not have oinked she could not have oinked we could not have oinked you could not have oinked they could not have oinked	I could not have been oinking you could not have been oinking she could not have been oinking we could not have been oinking you could not have been oinking they could not have been oinking

Interrogative form

Simple form	V-ing form
could I oink? could you oink? could she oink? could we oink? could you oink? could they oink?	could I be oinking? could you be oinking? could she be oinking? could we be oinking? could you be oinking? could they be oinking?
Perfect	V-ing perfect
could I have oinked? could you have oinked? could she have oinked? could we have oinked? could you have oinked? could they have oinked?	could I have been oinking? could you have been oinking? could she have been oinking? could we have been oinking? could you have been oinking? could they have been oinking?

Interro-negative form

Simple form	V-ing form
could I not oink? could you not oink? could she not oink? could we not oink? could you not oink? could they not oink?	could I not be oinking? could you not be oinking? could she not be oinking? could we not be oinking? could you not be oinking? could they not be oinking?
Perfect	V-ing perfect
could I not have oinked? could you not have oinked? could she not have oinked? could we not have oinked? could you not have oinked? could they not have oinked?	could I not have been oinking? could you not have been oinking? could she not have been oinking? could we not have been oinking? could you not have been oinking? could they not have been oinking?