I could thermoform you could thermoform she could thermoform we could thermoform you could thermoform they could thermoform
V-ing form
I could be thermoforming you could be thermoforming she could be thermoforming we could be thermoforming you could be thermoforming they could be thermoforming
Perfect
I could have thermoformed you could have thermoformed she could have thermoformed we could have thermoformed you could have thermoformed they could have thermoformed
V-ing perfect
I could have been thermoforming you could have been thermoforming she could have been thermoforming we could have been thermoforming you could have been thermoforming they could have been thermoforming
Negation
Simple form
I could not thermoform you could not thermoform she could not thermoform we could not thermoform you could not thermoform they could not thermoform
V-ing form
I could not be thermoforming you could not be thermoforming she could not be thermoforming we could not be thermoforming you could not be thermoforming they could not be thermoforming
Perfect
I could not have thermoformed you could not have thermoformed she could not have thermoformed we could not have thermoformed you could not have thermoformed they could not have thermoformed
V-ing perfect
I could not have been thermoforming you could not have been thermoforming she could not have been thermoforming we could not have been thermoforming you could not have been thermoforming they could not have been thermoforming
Interrogative form
Simple form
could I thermoform? could you thermoform? could she thermoform? could we thermoform? could you thermoform? could they thermoform?
V-ing form
could I be thermoforming? could you be thermoforming? could she be thermoforming? could we be thermoforming? could you be thermoforming? could they be thermoforming?
Perfect
could I have thermoformed? could you have thermoformed? could she have thermoformed? could we have thermoformed? could you have thermoformed? could they have thermoformed?
V-ing perfect
could I have been thermoforming? could you have been thermoforming? could she have been thermoforming? could we have been thermoforming? could you have been thermoforming? could they have been thermoforming?
Interro-negative form
Simple form
could I not thermoform? could you not thermoform? could she not thermoform? could we not thermoform? could you not thermoform? could they not thermoform?
V-ing form
could I not be thermoforming? could you not be thermoforming? could she not be thermoforming? could we not be thermoforming? could you not be thermoforming? could they not be thermoforming?
Perfect
could I not have thermoformed? could you not have thermoformed? could she not have thermoformed? could we not have thermoformed? could you not have thermoformed? could they not have thermoformed?
V-ing perfect
could I not have been thermoforming? could you not have been thermoforming? could she not have been thermoforming? could we not have been thermoforming? could you not have been thermoforming? could they not have been thermoforming?