could regurgitate
Regular verb: regurgitate - regurgitated- regurgitated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could regurgitate
you could regurgitate
she could regurgitate
we could regurgitate
you could regurgitate
they could regurgitate 	I could be regurgitating
you could be regurgitating
she could be regurgitating
we could be regurgitating
you could be regurgitating
they could be regurgitating	I could have regurgitated
you could have regurgitated
she could have regurgitated
we could have regurgitated
you could have regurgitated
they could have regurgitated	I could have been regurgitating
you could have been regurgitating
she could have been regurgitating
we could have been regurgitating
you could have been regurgitating
they could have been regurgitating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't regurgitate
you couldn't regurgitate
she couldn't regurgitate
we couldn't regurgitate
you couldn't regurgitate
they couldn't regurgitate 	I couldn't be regurgitating
you couldn't be regurgitating
she couldn't be regurgitating
we couldn't be regurgitating
you couldn't be regurgitating
they couldn't be regurgitating	I couldn't have regurgitated
you couldn't have regurgitated
she couldn't have regurgitated
we couldn't have regurgitated
you couldn't have regurgitated
they couldn't have regurgitated	I couldn't have been regurgitating
you couldn't have been regurgitating
she couldn't have been regurgitating
we couldn't have been regurgitating
you couldn't have been regurgitating
they couldn't have been regurgitating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I regurgitate?
could you regurgitate?
could she regurgitate?
could we regurgitate?
could you regurgitate?
could they regurgitate? 	could I be regurgitating?
could you be regurgitating?
could she be regurgitating?
could we be regurgitating?
could you be regurgitating?
could they be regurgitating? 	could I have regurgitated?
could you have regurgitated?
could she have regurgitated?
could we have regurgitated?
could you have regurgitated?
could they have regurgitated? 	could I have been regurgitating?
could you have been regurgitating?
could she have been regurgitating?
could we have been regurgitating?
could you have been regurgitating?
could they have been regurgitating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I regurgitate?
couldn't you regurgitate?
couldn't she regurgitate?
couldn't we regurgitate?
couldn't you regurgitate?
couldn't they regurgitate? 	couldn't I be regurgitating?
couldn't you be regurgitating?
couldn't she be regurgitating?
couldn't we be regurgitating?
couldn't you be regurgitating?
couldn't they be regurgitating? 	couldn't I have regurgitated?
couldn't you have regurgitated?
couldn't she have regurgitated?
couldn't we have regurgitated?
couldn't you have regurgitated?
couldn't they have regurgitated? 	couldn't I have been regurgitating?
couldn't you have been regurgitating?
couldn't she have been regurgitating?
couldn't we have been regurgitating?
couldn't you have been regurgitating?
couldn't they have been regurgitating?