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