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 cannot perdure you cannot perdure he cannot perdure we cannot perdure you cannot perdure they cannot perdure
Forma con V-ing
I cannot be perduring you cannot be perduring he cannot be perduring we cannot be perduring you cannot be perduring they cannot be perduring
Perfetto
I cannot have perdured you cannot have perdured he cannot have perdured we cannot have perdured you cannot have perdured they cannot have perdured
Perfetto con V-ing
I cannot have been perduring you cannot have been perduring he cannot have been perduring we cannot have been perduring you cannot have been perduring they cannot 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 I not perdure? can you not perdure? can he not perdure? can we not perdure? can you not perdure? can they not perdure?
Forma con V-ing
can I not be perduring? can you not be perduring? can he not be perduring? can we not be perduring? can you not be perduring? can they not be perduring?
Perfetto
can I not have perdured? can you not have perdured? can he not have perdured? can we not have perdured? can you not have perdured? can they not have perdured?
Perfetto con V-ing
can I not have been perduring? can you not have been perduring? can he not have been perduring? can we not have been perduring? can you not have been perduring? can they not have been perduring?