English verb conjugation
CAN SUBTOTAL

Regular verb: subtotal - subtotaled - subtotaled

Affirmation

Simple form	V-ing form
I can subtotal you can subtotal he can subtotal we can subtotal you can subtotal they can subtotal	I can be subtotaling you can be subtotaling he can be subtotaling we can be subtotaling you can be subtotaling they can be subtotaling
Perfect	V-ing perfect
I can have subtotaled you can have subtotaled he can have subtotaled we can have subtotaled you can have subtotaled they can have subtotaled	I can have been subtotaling you can have been subtotaling he can have been subtotaling we can have been subtotaling you can have been subtotaling they can have been subtotaling

Negation

Simple form	V-ing form
I can't subtotal you can't subtotal he can't subtotal we can't subtotal you can't subtotal they can't subtotal	I can't be subtotaling you can't be subtotaling he can't be subtotaling we can't be subtotaling you can't be subtotaling they can't be subtotaling
Perfect	V-ing perfect
I can't have subtotaled you can't have subtotaled he can't have subtotaled we can't have subtotaled you can't have subtotaled they can't have subtotaled	I can't have been subtotaling you can't have been subtotaling he can't have been subtotaling we can't have been subtotaling you can't have been subtotaling they can't have been subtotaling

Interrogative form

Simple form	V-ing form
can I subtotal? can you subtotal? can he subtotal? can we subtotal? can you subtotal? can they subtotal?	can I be subtotaling? can you be subtotaling? can he be subtotaling? can we be subtotaling? can you be subtotaling? can they be subtotaling?
Perfect	V-ing perfect
can I have subtotaled? can you have subtotaled? can he have subtotaled? can we have subtotaled? can you have subtotaled? can they have subtotaled?	can I have been subtotaling? can you have been subtotaling? can he have been subtotaling? can we have been subtotaling? can you have been subtotaling? can they have been subtotaling?

Interro-negative form

Simple form	V-ing form
can't I subtotal? can't you subtotal? can't he subtotal? can't we subtotal? can't you subtotal? can't they subtotal?	can't I be subtotaling? can't you be subtotaling? can't he be subtotaling? can't we be subtotaling? can't you be subtotaling? can't they be subtotaling?
Perfect	V-ing perfect
can't I have subtotaled? can't you have subtotaled? can't he have subtotaled? can't we have subtotaled? can't you have subtotaled? can't they have subtotaled?	can't I have been subtotaling? can't you have been subtotaling? can't he have been subtotaling? can't we have been subtotaling? can't you have been subtotaling? can't they have been subtotaling?