could overfurnish
Regular verb: overfurnish - overfurnished- overfurnished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could overfurnish
you could overfurnish
he could overfurnish
we could overfurnish
you could overfurnish
they could overfurnish 	I could be overfurnishing
you could be overfurnishing
he could be overfurnishing
we could be overfurnishing
you could be overfurnishing
they could be overfurnishing	I could have overfurnished
you could have overfurnished
he could have overfurnished
we could have overfurnished
you could have overfurnished
they could have overfurnished	I could have been overfurnishing
you could have been overfurnishing
he could have been overfurnishing
we could have been overfurnishing
you could have been overfurnishing
they could have been overfurnishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't overfurnish
you couldn't overfurnish
he couldn't overfurnish
we couldn't overfurnish
you couldn't overfurnish
they couldn't overfurnish 	I couldn't be overfurnishing
you couldn't be overfurnishing
he couldn't be overfurnishing
we couldn't be overfurnishing
you couldn't be overfurnishing
they couldn't be overfurnishing	I couldn't have overfurnished
you couldn't have overfurnished
he couldn't have overfurnished
we couldn't have overfurnished
you couldn't have overfurnished
they couldn't have overfurnished	I couldn't have been overfurnishing
you couldn't have been overfurnishing
he couldn't have been overfurnishing
we couldn't have been overfurnishing
you couldn't have been overfurnishing
they couldn't have been overfurnishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I overfurnish?
could you overfurnish?
could he overfurnish?
could we overfurnish?
could you overfurnish?
could they overfurnish? 	could I be overfurnishing?
could you be overfurnishing?
could he be overfurnishing?
could we be overfurnishing?
could you be overfurnishing?
could they be overfurnishing? 	could I have overfurnished?
could you have overfurnished?
could he have overfurnished?
could we have overfurnished?
could you have overfurnished?
could they have overfurnished? 	could I have been overfurnishing?
could you have been overfurnishing?
could he have been overfurnishing?
could we have been overfurnishing?
could you have been overfurnishing?
could they have been overfurnishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I overfurnish?
couldn't you overfurnish?
couldn't he overfurnish?
couldn't we overfurnish?
couldn't you overfurnish?
couldn't they overfurnish? 	couldn't I be overfurnishing?
couldn't you be overfurnishing?
couldn't he be overfurnishing?
couldn't we be overfurnishing?
couldn't you be overfurnishing?
couldn't they be overfurnishing? 	couldn't I have overfurnished?
couldn't you have overfurnished?
couldn't he have overfurnished?
couldn't we have overfurnished?
couldn't you have overfurnished?
couldn't they have overfurnished? 	couldn't I have been overfurnishing?
couldn't you have been overfurnishing?
couldn't he have been overfurnishing?
couldn't we have been overfurnishing?
couldn't you have been overfurnishing?
couldn't they have been overfurnishing?