I can perdure you can perdure he can perdure we can perdure you can perdure they can perdure
Forma con V-ing
I can be perduring you can be perduring he can be perduring we can be perduring you can be perduring they can be perduring
Perfetto
I can have perdured you can have perdured he can have perdured we can have perdured you can have perdured they can have perdured
Perfetto con V-ing
I can have been perduring you can have been perduring he can have been perduring we can have been perduring you can have been perduring they can have been perduring
Negazione
Forma semplice
I can't perdure you can't perdure he can't perdure we can't perdure you can't perdure they can't perdure
Forma con V-ing
I can't be perduring you can't be perduring he can't be perduring we can't be perduring you can't be perduring they can't be perduring
Perfetto
I can't have perdured you can't have perdured he can't have perdured we can't have perdured you can't have perdured they can't have perdured
Perfetto con V-ing
I can't have been perduring you can't have been perduring he can't have been perduring we can't have been perduring you can't have been perduring they can't have been perduring
Forma interrogativa
Forma semplice
can I perdure? can you perdure? can he perdure? can we perdure? can you perdure? can they perdure?
Forma con V-ing
can I be perduring? can you be perduring? can he be perduring? can we be perduring? can you be perduring? can they be perduring?
Perfetto
can I have perdured? can you have perdured? can he have perdured? can we have perdured? can you have perdured? can they have perdured?
Perfetto con V-ing
can I have been perduring? can you have been perduring? can he have been perduring? can we have been perduring? can you have been perduring? can they have been perduring?
Forma interro-negativa
Forma semplice
can't I perdure? can't you perdure? can't he perdure? can't we perdure? can't you perdure? can't they perdure?
Forma con V-ing
can't I be perduring? can't you be perduring? can't he be perduring? can't we be perduring? can't you be perduring? can't they be perduring?
Perfetto
can't I have perdured? can't you have perdured? can't he have perdured? can't we have perdured? can't you have perdured? can't they have perdured?
Perfetto con V-ing
can't I have been perduring? can't you have been perduring? can't he have been perduring? can't we have been perduring? can't you have been perduring? can't they have been perduring?