Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could footwear you could footwear she could footwear we could footwear you could footwear they could footwear
V-ing form
I could be footwearing you could be footwearing she could be footwearing we could be footwearing you could be footwearing they could be footwearing
Perfect
I could have footweared you could have footweared she could have footweared we could have footweared you could have footweared they could have footweared
V-ing perfect
I could have been footwearing you could have been footwearing she could have been footwearing we could have been footwearing you could have been footwearing they could have been footwearing
Negation
Simple form
I could not footwear you could not footwear she could not footwear we could not footwear you could not footwear they could not footwear
V-ing form
I could not be footwearing you could not be footwearing she could not be footwearing we could not be footwearing you could not be footwearing they could not be footwearing
Perfect
I could not have footweared you could not have footweared she could not have footweared we could not have footweared you could not have footweared they could not have footweared
V-ing perfect
I could not have been footwearing you could not have been footwearing she could not have been footwearing we could not have been footwearing you could not have been footwearing they could not have been footwearing
Interrogative form
Simple form
could I footwear? could you footwear? could she footwear? could we footwear? could you footwear? could they footwear?
V-ing form
could I be footwearing? could you be footwearing? could she be footwearing? could we be footwearing? could you be footwearing? could they be footwearing?
Perfect
could I have footweared? could you have footweared? could she have footweared? could we have footweared? could you have footweared? could they have footweared?
V-ing perfect
could I have been footwearing? could you have been footwearing? could she have been footwearing? could we have been footwearing? could you have been footwearing? could they have been footwearing?
Interro-negative form
Simple form
could I not footwear? could you not footwear? could she not footwear? could we not footwear? could you not footwear? could they not footwear?
V-ing form
could I not be footwearing? could you not be footwearing? could she not be footwearing? could we not be footwearing? could you not be footwearing? could they not be footwearing?
Perfect
could I not have footweared? could you not have footweared? could she not have footweared? could we not have footweared? could you not have footweared? could they not have footweared?
V-ing perfect
could I not have been footwearing? could you not have been footwearing? could she not have been footwearing? could we not have been footwearing? could you not have been footwearing? could they not have been footwearing?