I could mint you could mint she could mint we could mint you could mint they could mint
V-ing form
I could be minting you could be minting she could be minting we could be minting you could be minting they could be minting
Perfect
I could have minted you could have minted she could have minted we could have minted you could have minted they could have minted
V-ing perfect
I could have been minting you could have been minting she could have been minting we could have been minting you could have been minting they could have been minting
Negation
Simple form
I could not mint you could not mint she could not mint we could not mint you could not mint they could not mint
V-ing form
I could not be minting you could not be minting she could not be minting we could not be minting you could not be minting they could not be minting
Perfect
I could not have minted you could not have minted she could not have minted we could not have minted you could not have minted they could not have minted
V-ing perfect
I could not have been minting you could not have been minting she could not have been minting we could not have been minting you could not have been minting they could not have been minting
Interrogative form
Simple form
could I mint? could you mint? could she mint? could we mint? could you mint? could they mint?
V-ing form
could I be minting? could you be minting? could she be minting? could we be minting? could you be minting? could they be minting?
Perfect
could I have minted? could you have minted? could she have minted? could we have minted? could you have minted? could they have minted?
V-ing perfect
could I have been minting? could you have been minting? could she have been minting? could we have been minting? could you have been minting? could they have been minting?
Interro-negative form
Simple form
could I not mint? could you not mint? could she not mint? could we not mint? could you not mint? could they not mint?
V-ing form
could I not be minting? could you not be minting? could she not be minting? could we not be minting? could you not be minting? could they not be minting?
Perfect
could I not have minted? could you not have minted? could she not have minted? could we not have minted? could you not have minted? could they not have minted?
V-ing perfect
could I not have been minting? could you not have been minting? could she not have been minting? could we not have been minting? could you not have been minting? could they not have been minting?