could grace
Regular verb: grace - graced- graced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could grace
you could grace
he could grace
we could grace
you could grace
they could grace 	I could be gracing
you could be gracing
he could be gracing
we could be gracing
you could be gracing
they could be gracing	I could have graced
you could have graced
he could have graced
we could have graced
you could have graced
they could have graced	I could have been gracing
you could have been gracing
he could have been gracing
we could have been gracing
you could have been gracing
they could have been gracing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't grace
you couldn't grace
he couldn't grace
we couldn't grace
you couldn't grace
they couldn't grace 	I couldn't be gracing
you couldn't be gracing
he couldn't be gracing
we couldn't be gracing
you couldn't be gracing
they couldn't be gracing	I couldn't have graced
you couldn't have graced
he couldn't have graced
we couldn't have graced
you couldn't have graced
they couldn't have graced	I couldn't have been gracing
you couldn't have been gracing
he couldn't have been gracing
we couldn't have been gracing
you couldn't have been gracing
they couldn't have been gracing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I grace?
could you grace?
could he grace?
could we grace?
could you grace?
could they grace? 	could I be gracing?
could you be gracing?
could he be gracing?
could we be gracing?
could you be gracing?
could they be gracing? 	could I have graced?
could you have graced?
could he have graced?
could we have graced?
could you have graced?
could they have graced? 	could I have been gracing?
could you have been gracing?
could he have been gracing?
could we have been gracing?
could you have been gracing?
could they have been gracing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I grace?
couldn't you grace?
couldn't he grace?
couldn't we grace?
couldn't you grace?
couldn't they grace? 	couldn't I be gracing?
couldn't you be gracing?
couldn't he be gracing?
couldn't we be gracing?
couldn't you be gracing?
couldn't they be gracing? 	couldn't I have graced?
couldn't you have graced?
couldn't he have graced?
couldn't we have graced?
couldn't you have graced?
couldn't they have graced? 	couldn't I have been gracing?
couldn't you have been gracing?
couldn't he have been gracing?
couldn't we have been gracing?
couldn't you have been gracing?
couldn't they have been gracing?