English verb conjugation
CAN SPAM

Regular verb: spam - spamed - spamed

Affirmation

Simple form	V-ing form
I can spam you can spam he can spam we can spam you can spam they can spam	I can be spaming you can be spaming he can be spaming we can be spaming you can be spaming they can be spaming
Perfect	V-ing perfect
I can have spamed you can have spamed he can have spamed we can have spamed you can have spamed they can have spamed	I can have been spaming you can have been spaming he can have been spaming we can have been spaming you can have been spaming they can have been spaming

Negation

Simple form	V-ing form
I can't spam you can't spam he can't spam we can't spam you can't spam they can't spam	I can't be spaming you can't be spaming he can't be spaming we can't be spaming you can't be spaming they can't be spaming
Perfect	V-ing perfect
I can't have spamed you can't have spamed he can't have spamed we can't have spamed you can't have spamed they can't have spamed	I can't have been spaming you can't have been spaming he can't have been spaming we can't have been spaming you can't have been spaming they can't have been spaming

Interrogative form

Simple form	V-ing form
can I spam? can you spam? can he spam? can we spam? can you spam? can they spam?	can I be spaming? can you be spaming? can he be spaming? can we be spaming? can you be spaming? can they be spaming?
Perfect	V-ing perfect
can I have spamed? can you have spamed? can he have spamed? can we have spamed? can you have spamed? can they have spamed?	can I have been spaming? can you have been spaming? can he have been spaming? can we have been spaming? can you have been spaming? can they have been spaming?

Interro-negative form

Simple form	V-ing form
can't I spam? can't you spam? can't he spam? can't we spam? can't you spam? can't they spam?	can't I be spaming? can't you be spaming? can't he be spaming? can't we be spaming? can't you be spaming? can't they be spaming?
Perfect	V-ing perfect
can't I have spamed? can't you have spamed? can't he have spamed? can't we have spamed? can't you have spamed? can't they have spamed?	can't I have been spaming? can't you have been spaming? can't he have been spaming? can't we have been spaming? can't you have been spaming? can't they have been spaming?