could swig
Regular verb: swig - swigged- swigged

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