could peroxide
Regular verb: peroxide - peroxided- peroxided

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could peroxide
you could peroxide
he could peroxide
we could peroxide
you could peroxide
they could peroxide 	I could be peroxiding
you could be peroxiding
he could be peroxiding
we could be peroxiding
you could be peroxiding
they could be peroxiding	I could have peroxided
you could have peroxided
he could have peroxided
we could have peroxided
you could have peroxided
they could have peroxided	I could have been peroxiding
you could have been peroxiding
he could have been peroxiding
we could have been peroxiding
you could have been peroxiding
they could have been peroxiding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't peroxide
you couldn't peroxide
he couldn't peroxide
we couldn't peroxide
you couldn't peroxide
they couldn't peroxide 	I couldn't be peroxiding
you couldn't be peroxiding
he couldn't be peroxiding
we couldn't be peroxiding
you couldn't be peroxiding
they couldn't be peroxiding	I couldn't have peroxided
you couldn't have peroxided
he couldn't have peroxided
we couldn't have peroxided
you couldn't have peroxided
they couldn't have peroxided	I couldn't have been peroxiding
you couldn't have been peroxiding
he couldn't have been peroxiding
we couldn't have been peroxiding
you couldn't have been peroxiding
they couldn't have been peroxiding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I peroxide?
could you peroxide?
could he peroxide?
could we peroxide?
could you peroxide?
could they peroxide? 	could I be peroxiding?
could you be peroxiding?
could he be peroxiding?
could we be peroxiding?
could you be peroxiding?
could they be peroxiding? 	could I have peroxided?
could you have peroxided?
could he have peroxided?
could we have peroxided?
could you have peroxided?
could they have peroxided? 	could I have been peroxiding?
could you have been peroxiding?
could he have been peroxiding?
could we have been peroxiding?
could you have been peroxiding?
could they have been peroxiding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I peroxide?
couldn't you peroxide?
couldn't he peroxide?
couldn't we peroxide?
couldn't you peroxide?
couldn't they peroxide? 	couldn't I be peroxiding?
couldn't you be peroxiding?
couldn't he be peroxiding?
couldn't we be peroxiding?
couldn't you be peroxiding?
couldn't they be peroxiding? 	couldn't I have peroxided?
couldn't you have peroxided?
couldn't he have peroxided?
couldn't we have peroxided?
couldn't you have peroxided?
couldn't they have peroxided? 	couldn't I have been peroxiding?
couldn't you have been peroxiding?
couldn't he have been peroxiding?
couldn't we have been peroxiding?
couldn't you have been peroxiding?
couldn't they have been peroxiding?