could furbish
Regular verb: furbish - furbished- furbished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could furbish
you could furbish
he could furbish
we could furbish
you could furbish
they could furbish 	I could be furbishing
you could be furbishing
he could be furbishing
we could be furbishing
you could be furbishing
they could be furbishing	I could have furbished
you could have furbished
he could have furbished
we could have furbished
you could have furbished
they could have furbished	I could have been furbishing
you could have been furbishing
he could have been furbishing
we could have been furbishing
you could have been furbishing
they could have been furbishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not furbish
you could not furbish
he could not furbish
we could not furbish
you could not furbish
they could not furbish 	I could not be furbishing
you could not be furbishing
he could not be furbishing
we could not be furbishing
you could not be furbishing
they could not be furbishing	I could not have furbished
you could not have furbished
he could not have furbished
we could not have furbished
you could not have furbished
they could not have furbished	I could not have been furbishing
you could not have been furbishing
he could not have been furbishing
we could not have been furbishing
you could not have been furbishing
they could not have been furbishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I furbish?
could you furbish?
could he furbish?
could we furbish?
could you furbish?
could they furbish? 	could I be furbishing?
could you be furbishing?
could he be furbishing?
could we be furbishing?
could you be furbishing?
could they be furbishing? 	could I have furbished?
could you have furbished?
could he have furbished?
could we have furbished?
could you have furbished?
could they have furbished? 	could I have been furbishing?
could you have been furbishing?
could he have been furbishing?
could we have been furbishing?
could you have been furbishing?
could they have been furbishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not furbish?
could you not furbish?
could he not furbish?
could we not furbish?
could you not furbish?
could they not furbish? 	could I not be furbishing?
could you not be furbishing?
could he not be furbishing?
could we not be furbishing?
could you not be furbishing?
could they not be furbishing? 	could I not have furbished?
could you not have furbished?
could he not have furbished?
could we not have furbished?
could you not have furbished?
could they not have furbished? 	could I not have been furbishing?
could you not have been furbishing?
could he not have been furbishing?
could we not have been furbishing?
could you not have been furbishing?
could they not have been furbishing?