could french-polish
Regular verb: french-polish - french-polished- french-polished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could french-polish
you could french-polish
he could french-polish
we could french-polish
you could french-polish
they could french-polish 	I could be french-polishing
you could be french-polishing
he could be french-polishing
we could be french-polishing
you could be french-polishing
they could be french-polishing	I could have french-polished
you could have french-polished
he could have french-polished
we could have french-polished
you could have french-polished
they could have french-polished	I could have been french-polishing
you could have been french-polishing
he could have been french-polishing
we could have been french-polishing
you could have been french-polishing
they could have been french-polishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't french-polish
you couldn't french-polish
he couldn't french-polish
we couldn't french-polish
you couldn't french-polish
they couldn't french-polish 	I couldn't be french-polishing
you couldn't be french-polishing
he couldn't be french-polishing
we couldn't be french-polishing
you couldn't be french-polishing
they couldn't be french-polishing	I couldn't have french-polished
you couldn't have french-polished
he couldn't have french-polished
we couldn't have french-polished
you couldn't have french-polished
they couldn't have french-polished	I couldn't have been french-polishing
you couldn't have been french-polishing
he couldn't have been french-polishing
we couldn't have been french-polishing
you couldn't have been french-polishing
they couldn't have been french-polishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I french-polish?
could you french-polish?
could he french-polish?
could we french-polish?
could you french-polish?
could they french-polish? 	could I be french-polishing?
could you be french-polishing?
could he be french-polishing?
could we be french-polishing?
could you be french-polishing?
could they be french-polishing? 	could I have french-polished?
could you have french-polished?
could he have french-polished?
could we have french-polished?
could you have french-polished?
could they have french-polished? 	could I have been french-polishing?
could you have been french-polishing?
could he have been french-polishing?
could we have been french-polishing?
could you have been french-polishing?
could they have been french-polishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I french-polish?
couldn't you french-polish?
couldn't he french-polish?
couldn't we french-polish?
couldn't you french-polish?
couldn't they french-polish? 	couldn't I be french-polishing?
couldn't you be french-polishing?
couldn't he be french-polishing?
couldn't we be french-polishing?
couldn't you be french-polishing?
couldn't they be french-polishing? 	couldn't I have french-polished?
couldn't you have french-polished?
couldn't he have french-polished?
couldn't we have french-polished?
couldn't you have french-polished?
couldn't they have french-polished? 	couldn't I have been french-polishing?
couldn't you have been french-polishing?
couldn't he have been french-polishing?
couldn't we have been french-polishing?
couldn't you have been french-polishing?
couldn't they have been french-polishing?