could ingraft
Regular verb: ingraft - ingrafted- ingrafted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could ingraft
you could ingraft
he could ingraft
we could ingraft
you could ingraft
they could ingraft 	I could be ingrafting
you could be ingrafting
he could be ingrafting
we could be ingrafting
you could be ingrafting
they could be ingrafting	I could have ingrafted
you could have ingrafted
he could have ingrafted
we could have ingrafted
you could have ingrafted
they could have ingrafted	I could have been ingrafting
you could have been ingrafting
he could have been ingrafting
we could have been ingrafting
you could have been ingrafting
they could have been ingrafting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't ingraft
you couldn't ingraft
he couldn't ingraft
we couldn't ingraft
you couldn't ingraft
they couldn't ingraft 	I couldn't be ingrafting
you couldn't be ingrafting
he couldn't be ingrafting
we couldn't be ingrafting
you couldn't be ingrafting
they couldn't be ingrafting	I couldn't have ingrafted
you couldn't have ingrafted
he couldn't have ingrafted
we couldn't have ingrafted
you couldn't have ingrafted
they couldn't have ingrafted	I couldn't have been ingrafting
you couldn't have been ingrafting
he couldn't have been ingrafting
we couldn't have been ingrafting
you couldn't have been ingrafting
they couldn't have been ingrafting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I ingraft?
could you ingraft?
could he ingraft?
could we ingraft?
could you ingraft?
could they ingraft? 	could I be ingrafting?
could you be ingrafting?
could he be ingrafting?
could we be ingrafting?
could you be ingrafting?
could they be ingrafting? 	could I have ingrafted?
could you have ingrafted?
could he have ingrafted?
could we have ingrafted?
could you have ingrafted?
could they have ingrafted? 	could I have been ingrafting?
could you have been ingrafting?
could he have been ingrafting?
could we have been ingrafting?
could you have been ingrafting?
could they have been ingrafting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I ingraft?
couldn't you ingraft?
couldn't he ingraft?
couldn't we ingraft?
couldn't you ingraft?
couldn't they ingraft? 	couldn't I be ingrafting?
couldn't you be ingrafting?
couldn't he be ingrafting?
couldn't we be ingrafting?
couldn't you be ingrafting?
couldn't they be ingrafting? 	couldn't I have ingrafted?
couldn't you have ingrafted?
couldn't he have ingrafted?
couldn't we have ingrafted?
couldn't you have ingrafted?
couldn't they have ingrafted? 	couldn't I have been ingrafting?
couldn't you have been ingrafting?
couldn't he have been ingrafting?
couldn't we have been ingrafting?
couldn't you have been ingrafting?
couldn't they have been ingrafting?