English verb conjugation
COULD PINK

Regular verb: pink - pinked - pinked

Affirmation

Simple form	V-ing form
I could pink you could pink he could pink we could pink you could pink they could pink	I could be pinking you could be pinking he could be pinking we could be pinking you could be pinking they could be pinking
Perfect	V-ing perfect
I could have pinked you could have pinked he could have pinked we could have pinked you could have pinked they could have pinked	I could have been pinking you could have been pinking he could have been pinking we could have been pinking you could have been pinking they could have been pinking

Negation

Simple form	V-ing form
I could not pink you could not pink he could not pink we could not pink you could not pink they could not pink	I could not be pinking you could not be pinking he could not be pinking we could not be pinking you could not be pinking they could not be pinking
Perfect	V-ing perfect
I could not have pinked you could not have pinked he could not have pinked we could not have pinked you could not have pinked they could not have pinked	I could not have been pinking you could not have been pinking he could not have been pinking we could not have been pinking you could not have been pinking they could not have been pinking

Interrogative form

Simple form	V-ing form
could I pink? could you pink? could he pink? could we pink? could you pink? could they pink?	could I be pinking? could you be pinking? could he be pinking? could we be pinking? could you be pinking? could they be pinking?
Perfect	V-ing perfect
could I have pinked? could you have pinked? could he have pinked? could we have pinked? could you have pinked? could they have pinked?	could I have been pinking? could you have been pinking? could he have been pinking? could we have been pinking? could you have been pinking? could they have been pinking?

Interro-negative form

Simple form	V-ing form
could I not pink? could you not pink? could he not pink? could we not pink? could you not pink? could they not pink?	could I not be pinking? could you not be pinking? could he not be pinking? could we not be pinking? could you not be pinking? could they not be pinking?
Perfect	V-ing perfect
could I not have pinked? could you not have pinked? could he not have pinked? could we not have pinked? could you not have pinked? could they not have pinked?	could I not have been pinking? could you not have been pinking? could he not have been pinking? could we not have been pinking? could you not have been pinking? could they not have been pinking?