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 cannot vial you cannot vial he cannot vial we cannot vial you cannot vial they cannot vial	I cannot be vialing you cannot be vialing he cannot be vialing we cannot be vialing you cannot be vialing they cannot be vialing
Perfect	V-ing perfect
I cannot have vialed you cannot have vialed he cannot have vialed we cannot have vialed you cannot have vialed they cannot have vialed	I cannot have been vialing you cannot have been vialing he cannot have been vialing we cannot have been vialing you cannot have been vialing they cannot 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 I not vial? can you not vial? can he not vial? can we not vial? can you not vial? can they not vial?	can I not be vialing? can you not be vialing? can he not be vialing? can we not be vialing? can you not be vialing? can they not be vialing?
Perfect	V-ing perfect
can I not have vialed? can you not have vialed? can he not have vialed? can we not have vialed? can you not have vialed? can they not have vialed?	can I not have been vialing? can you not have been vialing? can he not have been vialing? can we not have been vialing? can you not have been vialing? can they not have been vialing?