English verb conjugation
COULD SWIG

Regular verb: swig - swigged - swigged

Affirmation

Simple form	V-ing form
I could swig you could swig he could swig we could swig you could swig they could swig	I could be swigging you could be swigging he could be swigging we could be swigging you could be swigging they could be swigging
Perfect	V-ing perfect
I could have swigged you could have swigged he could have swigged we could have swigged you could have swigged they could have swigged	I could have been swigging you could have been swigging he could have been swigging we could have been swigging you could have been swigging they could have been swigging

Negation

Simple form	V-ing form
I could not swig you could not swig he could not swig we could not swig you could not swig they could not swig	I could not be swigging you could not be swigging he could not be swigging we could not be swigging you could not be swigging they could not be swigging
Perfect	V-ing perfect
I could not have swigged you could not have swigged he could not have swigged we could not have swigged you could not have swigged they could not have swigged	I could not have been swigging you could not have been swigging he could not have been swigging we could not have been swigging you could not have been swigging they could not have been swigging

Interrogative form

Simple form	V-ing form
could I swig? could you swig? could he swig? could we swig? could you swig? could they swig?	could I be swigging? could you be swigging? could he be swigging? could we be swigging? could you be swigging? could they be swigging?
Perfect	V-ing perfect
could I have swigged? could you have swigged? could he have swigged? could we have swigged? could you have swigged? could they have swigged?	could I have been swigging? could you have been swigging? could he have been swigging? could we have been swigging? could you have been swigging? could they have been swigging?

Interro-negative form

Simple form	V-ing form
could I not swig? could you not swig? could he not swig? could we not swig? could you not swig? could they not swig?	could I not be swigging? could you not be swigging? could he not be swigging? could we not be swigging? could you not be swigging? could they not be swigging?
Perfect	V-ing perfect
could I not have swigged? could you not have swigged? could he not have swigged? could we not have swigged? could you not have swigged? could they not have swigged?	could I not have been swigging? could you not have been swigging? could he not have been swigging? could we not have been swigging? could you not have been swigging? could they not have been swigging?