English verb conjugation
COULD UNFREEZE

Regular verb: unfreeze - unfreezed - unfreezed

Affirmation

Simple form	V-ing form
I could unfreeze you could unfreeze he could unfreeze we could unfreeze you could unfreeze they could unfreeze	I could be unfreezing you could be unfreezing he could be unfreezing we could be unfreezing you could be unfreezing they could be unfreezing
Perfect	V-ing perfect
I could have unfreezed you could have unfreezed he could have unfreezed we could have unfreezed you could have unfreezed they could have unfreezed	I could have been unfreezing you could have been unfreezing he could have been unfreezing we could have been unfreezing you could have been unfreezing they could have been unfreezing

Negation

Simple form	V-ing form
I could not unfreeze you could not unfreeze he could not unfreeze we could not unfreeze you could not unfreeze they could not unfreeze	I could not be unfreezing you could not be unfreezing he could not be unfreezing we could not be unfreezing you could not be unfreezing they could not be unfreezing
Perfect	V-ing perfect
I could not have unfreezed you could not have unfreezed he could not have unfreezed we could not have unfreezed you could not have unfreezed they could not have unfreezed	I could not have been unfreezing you could not have been unfreezing he could not have been unfreezing we could not have been unfreezing you could not have been unfreezing they could not have been unfreezing

Interrogative form

Simple form	V-ing form
could I unfreeze? could you unfreeze? could he unfreeze? could we unfreeze? could you unfreeze? could they unfreeze?	could I be unfreezing? could you be unfreezing? could he be unfreezing? could we be unfreezing? could you be unfreezing? could they be unfreezing?
Perfect	V-ing perfect
could I have unfreezed? could you have unfreezed? could he have unfreezed? could we have unfreezed? could you have unfreezed? could they have unfreezed?	could I have been unfreezing? could you have been unfreezing? could he have been unfreezing? could we have been unfreezing? could you have been unfreezing? could they have been unfreezing?

Interro-negative form

Simple form	V-ing form
could I not unfreeze? could you not unfreeze? could he not unfreeze? could we not unfreeze? could you not unfreeze? could they not unfreeze?	could I not be unfreezing? could you not be unfreezing? could he not be unfreezing? could we not be unfreezing? could you not be unfreezing? could they not be unfreezing?
Perfect	V-ing perfect
could I not have unfreezed? could you not have unfreezed? could he not have unfreezed? could we not have unfreezed? could you not have unfreezed? could they not have unfreezed?	could I not have been unfreezing? could you not have been unfreezing? could he not have been unfreezing? could we not have been unfreezing? could you not have been unfreezing? could they not have been unfreezing?