I can scam you can scam he can scam we can scam you can scam they can scam
V-ing form
I can be scamming you can be scamming he can be scamming we can be scamming you can be scamming they can be scamming
Perfect
I can have scammed you can have scammed he can have scammed we can have scammed you can have scammed they can have scammed
V-ing perfect
I can have been scamming you can have been scamming he can have been scamming we can have been scamming you can have been scamming they can have been scamming
Negation
Simple form
I can't scam you can't scam he can't scam we can't scam you can't scam they can't scam
V-ing form
I can't be scamming you can't be scamming he can't be scamming we can't be scamming you can't be scamming they can't be scamming
Perfect
I can't have scammed you can't have scammed he can't have scammed we can't have scammed you can't have scammed they can't have scammed
V-ing perfect
I can't have been scamming you can't have been scamming he can't have been scamming we can't have been scamming you can't have been scamming they can't have been scamming
Interrogative form
Simple form
can I scam? can you scam? can he scam? can we scam? can you scam? can they scam?
V-ing form
can I be scamming? can you be scamming? can he be scamming? can we be scamming? can you be scamming? can they be scamming?
Perfect
can I have scammed? can you have scammed? can he have scammed? can we have scammed? can you have scammed? can they have scammed?
V-ing perfect
can I have been scamming? can you have been scamming? can he have been scamming? can we have been scamming? can you have been scamming? can they have been scamming?
Interro-negative form
Simple form
can't I scam? can't you scam? can't he scam? can't we scam? can't you scam? can't they scam?
V-ing form
can't I be scamming? can't you be scamming? can't he be scamming? can't we be scamming? can't you be scamming? can't they be scamming?
Perfect
can't I have scammed? can't you have scammed? can't he have scammed? can't we have scammed? can't you have scammed? can't they have scammed?
V-ing perfect
can't I have been scamming? can't you have been scamming? can't he have been scamming? can't we have been scamming? can't you have been scamming? can't they have been scamming?