could rumba
Regular verb: rumba - rumbaed- rumbaed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could rumba
you could rumba
he could rumba
we could rumba
you could rumba
they could rumba 	I could be rumbaing
you could be rumbaing
he could be rumbaing
we could be rumbaing
you could be rumbaing
they could be rumbaing	I could have rumbaed
you could have rumbaed
he could have rumbaed
we could have rumbaed
you could have rumbaed
they could have rumbaed	I could have been rumbaing
you could have been rumbaing
he could have been rumbaing
we could have been rumbaing
you could have been rumbaing
they could have been rumbaing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't rumba
you couldn't rumba
he couldn't rumba
we couldn't rumba
you couldn't rumba
they couldn't rumba 	I couldn't be rumbaing
you couldn't be rumbaing
he couldn't be rumbaing
we couldn't be rumbaing
you couldn't be rumbaing
they couldn't be rumbaing	I couldn't have rumbaed
you couldn't have rumbaed
he couldn't have rumbaed
we couldn't have rumbaed
you couldn't have rumbaed
they couldn't have rumbaed	I couldn't have been rumbaing
you couldn't have been rumbaing
he couldn't have been rumbaing
we couldn't have been rumbaing
you couldn't have been rumbaing
they couldn't have been rumbaing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I rumba?
could you rumba?
could he rumba?
could we rumba?
could you rumba?
could they rumba? 	could I be rumbaing?
could you be rumbaing?
could he be rumbaing?
could we be rumbaing?
could you be rumbaing?
could they be rumbaing? 	could I have rumbaed?
could you have rumbaed?
could he have rumbaed?
could we have rumbaed?
could you have rumbaed?
could they have rumbaed? 	could I have been rumbaing?
could you have been rumbaing?
could he have been rumbaing?
could we have been rumbaing?
could you have been rumbaing?
could they have been rumbaing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I rumba?
couldn't you rumba?
couldn't he rumba?
couldn't we rumba?
couldn't you rumba?
couldn't they rumba? 	couldn't I be rumbaing?
couldn't you be rumbaing?
couldn't he be rumbaing?
couldn't we be rumbaing?
couldn't you be rumbaing?
couldn't they be rumbaing? 	couldn't I have rumbaed?
couldn't you have rumbaed?
couldn't he have rumbaed?
couldn't we have rumbaed?
couldn't you have rumbaed?
couldn't they have rumbaed? 	couldn't I have been rumbaing?
couldn't you have been rumbaing?
couldn't he have been rumbaing?
couldn't we have been rumbaing?
couldn't you have been rumbaing?
couldn't they have been rumbaing?