could prefreeze
Regular verb: prefreeze - prefreezed- prefreezed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could prefreeze
you could prefreeze
he could prefreeze
we could prefreeze
you could prefreeze
they could prefreeze 	I could be prefreezing
you could be prefreezing
he could be prefreezing
we could be prefreezing
you could be prefreezing
they could be prefreezing	I could have prefreezed
you could have prefreezed
he could have prefreezed
we could have prefreezed
you could have prefreezed
they could have prefreezed	I could have been prefreezing
you could have been prefreezing
he could have been prefreezing
we could have been prefreezing
you could have been prefreezing
they could have been prefreezing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't prefreeze
you couldn't prefreeze
he couldn't prefreeze
we couldn't prefreeze
you couldn't prefreeze
they couldn't prefreeze 	I couldn't be prefreezing
you couldn't be prefreezing
he couldn't be prefreezing
we couldn't be prefreezing
you couldn't be prefreezing
they couldn't be prefreezing	I couldn't have prefreezed
you couldn't have prefreezed
he couldn't have prefreezed
we couldn't have prefreezed
you couldn't have prefreezed
they couldn't have prefreezed	I couldn't have been prefreezing
you couldn't have been prefreezing
he couldn't have been prefreezing
we couldn't have been prefreezing
you couldn't have been prefreezing
they couldn't have been prefreezing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I prefreeze?
could you prefreeze?
could he prefreeze?
could we prefreeze?
could you prefreeze?
could they prefreeze? 	could I be prefreezing?
could you be prefreezing?
could he be prefreezing?
could we be prefreezing?
could you be prefreezing?
could they be prefreezing? 	could I have prefreezed?
could you have prefreezed?
could he have prefreezed?
could we have prefreezed?
could you have prefreezed?
could they have prefreezed? 	could I have been prefreezing?
could you have been prefreezing?
could he have been prefreezing?
could we have been prefreezing?
could you have been prefreezing?
could they have been prefreezing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I prefreeze?
couldn't you prefreeze?
couldn't he prefreeze?
couldn't we prefreeze?
couldn't you prefreeze?
couldn't they prefreeze? 	couldn't I be prefreezing?
couldn't you be prefreezing?
couldn't he be prefreezing?
couldn't we be prefreezing?
couldn't you be prefreezing?
couldn't they be prefreezing? 	couldn't I have prefreezed?
couldn't you have prefreezed?
couldn't he have prefreezed?
couldn't we have prefreezed?
couldn't you have prefreezed?
couldn't they have prefreezed? 	couldn't I have been prefreezing?
couldn't you have been prefreezing?
couldn't he have been prefreezing?
couldn't we have been prefreezing?
couldn't you have been prefreezing?
couldn't they have been prefreezing?