English verb conjugation
CAN UNSEAL

Regular verb: unseal - unsealed - unsealed

Affirmation

Simple form	V-ing form
I can unseal you can unseal he can unseal we can unseal you can unseal they can unseal	I can be unsealing you can be unsealing he can be unsealing we can be unsealing you can be unsealing they can be unsealing
Perfect	V-ing perfect
I can have unsealed you can have unsealed he can have unsealed we can have unsealed you can have unsealed they can have unsealed	I can have been unsealing you can have been unsealing he can have been unsealing we can have been unsealing you can have been unsealing they can have been unsealing

Negation

Simple form	V-ing form
I can't unseal you can't unseal he can't unseal we can't unseal you can't unseal they can't unseal	I can't be unsealing you can't be unsealing he can't be unsealing we can't be unsealing you can't be unsealing they can't be unsealing
Perfect	V-ing perfect
I can't have unsealed you can't have unsealed he can't have unsealed we can't have unsealed you can't have unsealed they can't have unsealed	I can't have been unsealing you can't have been unsealing he can't have been unsealing we can't have been unsealing you can't have been unsealing they can't have been unsealing

Interrogative form

Simple form	V-ing form
can I unseal? can you unseal? can he unseal? can we unseal? can you unseal? can they unseal?	can I be unsealing? can you be unsealing? can he be unsealing? can we be unsealing? can you be unsealing? can they be unsealing?
Perfect	V-ing perfect
can I have unsealed? can you have unsealed? can he have unsealed? can we have unsealed? can you have unsealed? can they have unsealed?	can I have been unsealing? can you have been unsealing? can he have been unsealing? can we have been unsealing? can you have been unsealing? can they have been unsealing?

Interro-negative form

Simple form	V-ing form
can't I unseal? can't you unseal? can't he unseal? can't we unseal? can't you unseal? can't they unseal?	can't I be unsealing? can't you be unsealing? can't he be unsealing? can't we be unsealing? can't you be unsealing? can't they be unsealing?
Perfect	V-ing perfect
can't I have unsealed? can't you have unsealed? can't he have unsealed? can't we have unsealed? can't you have unsealed? can't they have unsealed?	can't I have been unsealing? can't you have been unsealing? can't he have been unsealing? can't we have been unsealing? can't you have been unsealing? can't they have been unsealing?