English verb conjugation
CAN VIAL

Regular verb: vial - vialed - vialed

Affirmation

Simple form	V-ing form
I can vial you can vial he can vial we can vial you can vial they can vial	I can be vialing you can be vialing he can be vialing we can be vialing you can be vialing they can be vialing
Perfect	V-ing perfect
I can have vialed you can have vialed he can have vialed we can have vialed you can have vialed they can have vialed	I can have been vialing you can have been vialing he can have been vialing we can have been vialing you can have been vialing they can have been vialing

Negation

Simple form	V-ing form
I can't vial you can't vial he can't vial we can't vial you can't vial they can't vial	I can't be vialing you can't be vialing he can't be vialing we can't be vialing you can't be vialing they can't be vialing
Perfect	V-ing perfect
I can't have vialed you can't have vialed he can't have vialed we can't have vialed you can't have vialed they can't have vialed	I can't have been vialing you can't have been vialing he can't have been vialing we can't have been vialing you can't have been vialing they can't have been vialing

Interrogative form

Simple form	V-ing form
can I vial? can you vial? can he vial? can we vial? can you vial? can they vial?	can I be vialing? can you be vialing? can he be vialing? can we be vialing? can you be vialing? can they be vialing?
Perfect	V-ing perfect
can I have vialed? can you have vialed? can he have vialed? can we have vialed? can you have vialed? can they have vialed?	can I have been vialing? can you have been vialing? can he have been vialing? can we have been vialing? can you have been vialing? can they have been vialing?

Interro-negative form

Simple form	V-ing form
can't I vial? can't you vial? can't he vial? can't we vial? can't you vial? can't they vial?	can't I be vialing? can't you be vialing? can't he be vialing? can't we be vialing? can't you be vialing? can't they be vialing?
Perfect	V-ing perfect
can't I have vialed? can't you have vialed? can't he have vialed? can't we have vialed? can't you have vialed? can't they have vialed?	can't I have been vialing? can't you have been vialing? can't he have been vialing? can't we have been vialing? can't you have been vialing? can't they have been vialing?