English verb conjugation
COULD OINK

Regular verb: oink - oinked - oinked

Affirmation

Simple form	V-ing form
I could oink you could oink he could oink we could oink you could oink they could oink	I could be oinking you could be oinking he 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 he 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 he 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 he 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 he 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 he 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 he 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 he oink? could we oink? could you oink? could they oink?	could I be oinking? could you be oinking? could he 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 he 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 he 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 he 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 he 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 he 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 he not have been oinking? could we not have been oinking? could you not have been oinking? could they not have been oinking?