English verb conjugation
CAN SCAM

Regular verb: scam - scammed - scammed

Affirmation

Simple form	V-ing form
I can scam you can scam he can scam we can scam you can scam they can scam	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	V-ing 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	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	V-ing 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	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	V-ing 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	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	V-ing form
can I scam? can you scam? can he scam? can we scam? can you scam? can they scam?	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	V-ing 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?	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	V-ing 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?	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	V-ing 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?	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?