English verb conjugation
COULD WING

Regular verb: wing - winged - winged

Affirmation

Simple form	V-ing form
I could wing you could wing he could wing we could wing you could wing they could wing	I could be winging you could be winging he could be winging we could be winging you could be winging they could be winging
Perfect	V-ing perfect
I could have winged you could have winged he could have winged we could have winged you could have winged they could have winged	I could have been winging you could have been winging he could have been winging we could have been winging you could have been winging they could have been winging

Negation

Simple form	V-ing form
I could not wing you could not wing he could not wing we could not wing you could not wing they could not wing	I could not be winging you could not be winging he could not be winging we could not be winging you could not be winging they could not be winging
Perfect	V-ing perfect
I could not have winged you could not have winged he could not have winged we could not have winged you could not have winged they could not have winged	I could not have been winging you could not have been winging he could not have been winging we could not have been winging you could not have been winging they could not have been winging

Interrogative form

Simple form	V-ing form
could I wing? could you wing? could he wing? could we wing? could you wing? could they wing?	could I be winging? could you be winging? could he be winging? could we be winging? could you be winging? could they be winging?
Perfect	V-ing perfect
could I have winged? could you have winged? could he have winged? could we have winged? could you have winged? could they have winged?	could I have been winging? could you have been winging? could he have been winging? could we have been winging? could you have been winging? could they have been winging?

Interro-negative form

Simple form	V-ing form
could I not wing? could you not wing? could he not wing? could we not wing? could you not wing? could they not wing?	could I not be winging? could you not be winging? could he not be winging? could we not be winging? could you not be winging? could they not be winging?
Perfect	V-ing perfect
could I not have winged? could you not have winged? could he not have winged? could we not have winged? could you not have winged? could they not have winged?	could I not have been winging? could you not have been winging? could he not have been winging? could we not have been winging? could you not have been winging? could they not have been winging?