I can verify you can verify he can verify we can verify you can verify they can verify
Forma con V-ing
I can be verifying you can be verifying he can be verifying we can be verifying you can be verifying they can be verifying
Perfecto
I can have verified you can have verified he can have verified we can have verified you can have verified they can have verified
Perfecto con V-ing
I can have been verifying you can have been verifying he can have been verifying we can have been verifying you can have been verifying they can have been verifying
Negación
Forma simple
I can't verify you can't verify he can't verify we can't verify you can't verify they can't verify
Forma con V-ing
I can't be verifying you can't be verifying he can't be verifying we can't be verifying you can't be verifying they can't be verifying
Perfecto
I can't have verified you can't have verified he can't have verified we can't have verified you can't have verified they can't have verified
Perfecto con V-ing
I can't have been verifying you can't have been verifying he can't have been verifying we can't have been verifying you can't have been verifying they can't have been verifying
Forma interrogativa
Forma simple
can I verify? can you verify? can he verify? can we verify? can you verify? can they verify?
Forma con V-ing
can I be verifying? can you be verifying? can he be verifying? can we be verifying? can you be verifying? can they be verifying?
Perfecto
can I have verified? can you have verified? can he have verified? can we have verified? can you have verified? can they have verified?
Perfecto con V-ing
can I have been verifying? can you have been verifying? can he have been verifying? can we have been verifying? can you have been verifying? can they have been verifying?
Forma interro-negativa
Forma simple
can't I verify? can't you verify? can't he verify? can't we verify? can't you verify? can't they verify?
Forma con V-ing
can't I be verifying? can't you be verifying? can't he be verifying? can't we be verifying? can't you be verifying? can't they be verifying?
Perfecto
can't I have verified? can't you have verified? can't he have verified? can't we have verified? can't you have verified? can't they have verified?
Perfecto con V-ing
can't I have been verifying? can't you have been verifying? can't he have been verifying? can't we have been verifying? can't you have been verifying? can't they have been verifying?