I can perdure you can perdure he can perdure we can perdure you can perdure they can perdure
Forme en 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
Perfect
I can have perdured you can have perdured he can have perdured we can have perdured you can have perdured they can have perdured
Perfect en 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
Négation
Forme simple
I can't perdure you can't perdure he can't perdure we can't perdure you can't perdure they can't perdure
Forme en 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
Perfect
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
Perfect en 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
Forme interrogative
Forme simple
can I perdure? can you perdure? can he perdure? can we perdure? can you perdure? can they perdure?
Forme en 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?
Perfect
can I have perdured? can you have perdured? can he have perdured? can we have perdured? can you have perdured? can they have perdured?
Perfect en 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?
Forme interro-négative
Forme simple
can't I perdure? can't you perdure? can't he perdure? can't we perdure? can't you perdure? can't they perdure?
Forme en 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?
Perfect
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?
Perfect en 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?