English verb conjugation
COULD PREFREEZE

Regular verb: prefreeze - prefreezed - prefreezed

Affirmation

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