English verb conjugation
COULD WINK

Regular verb: wink - winked - winked

Affirmation

Simple form	V-ing form
I could wink you could wink he could wink we could wink you could wink they could wink	I could be winking you could be winking he could be winking we could be winking you could be winking they could be winking
Perfect	V-ing perfect
I could have winked you could have winked he could have winked we could have winked you could have winked they could have winked	I could have been winking you could have been winking he could have been winking we could have been winking you could have been winking they could have been winking

Negation

Simple form	V-ing form
I could not wink you could not wink he could not wink we could not wink you could not wink they could not wink	I could not be winking you could not be winking he could not be winking we could not be winking you could not be winking they could not be winking
Perfect	V-ing perfect
I could not have winked you could not have winked he could not have winked we could not have winked you could not have winked they could not have winked	I could not have been winking you could not have been winking he could not have been winking we could not have been winking you could not have been winking they could not have been winking

Interrogative form

Simple form	V-ing form
could I wink? could you wink? could he wink? could we wink? could you wink? could they wink?	could I be winking? could you be winking? could he be winking? could we be winking? could you be winking? could they be winking?
Perfect	V-ing perfect
could I have winked? could you have winked? could he have winked? could we have winked? could you have winked? could they have winked?	could I have been winking? could you have been winking? could he have been winking? could we have been winking? could you have been winking? could they have been winking?

Interro-negative form

Simple form	V-ing form
could I not wink? could you not wink? could he not wink? could we not wink? could you not wink? could they not wink?	could I not be winking? could you not be winking? could he not be winking? could we not be winking? could you not be winking? could they not be winking?
Perfect	V-ing perfect
could I not have winked? could you not have winked? could he not have winked? could we not have winked? could you not have winked? could they not have winked?	could I not have been winking? could you not have been winking? could he not have been winking? could we not have been winking? could you not have been winking? could they not have been winking?