I can intervene you can intervene she can intervene we can intervene you can intervene they can intervene
Forme en V-ing
I can be intervening you can be intervening she can be intervening we can be intervening you can be intervening they can be intervening
Perfect
I can have intervened you can have intervened she can have intervened we can have intervened you can have intervened they can have intervened
Perfect en V-ing
I can have been intervening you can have been intervening she can have been intervening we can have been intervening you can have been intervening they can have been intervening
Négation
Forme simple
I can't intervene you can't intervene she can't intervene we can't intervene you can't intervene they can't intervene
Forme en V-ing
I can't be intervening you can't be intervening she can't be intervening we can't be intervening you can't be intervening they can't be intervening
Perfect
I can't have intervened you can't have intervened she can't have intervened we can't have intervened you can't have intervened they can't have intervened
Perfect en V-ing
I can't have been intervening you can't have been intervening she can't have been intervening we can't have been intervening you can't have been intervening they can't have been intervening
Forme interrogative
Forme simple
can I intervene? can you intervene? can she intervene? can we intervene? can you intervene? can they intervene?
Forme en V-ing
can I be intervening? can you be intervening? can she be intervening? can we be intervening? can you be intervening? can they be intervening?
Perfect
can I have intervened? can you have intervened? can she have intervened? can we have intervened? can you have intervened? can they have intervened?
Perfect en V-ing
can I have been intervening? can you have been intervening? can she have been intervening? can we have been intervening? can you have been intervening? can they have been intervening?
Forme interro-négative
Forme simple
can't I intervene? can't you intervene? can't she intervene? can't we intervene? can't you intervene? can't they intervene?
Forme en V-ing
can't I be intervening? can't you be intervening? can't she be intervening? can't we be intervening? can't you be intervening? can't they be intervening?
Perfect
can't I have intervened? can't you have intervened? can't she have intervened? can't we have intervened? can't you have intervened? can't they have intervened?
Perfect en V-ing
can't I have been intervening? can't you have been intervening? can't she have been intervening? can't we have been intervening? can't you have been intervening? can't they have been intervening?