I can forefend you can forefend he can forefend we can forefend you can forefend they can forefend
Forme en V-ing
I can be forefending you can be forefending he can be forefending we can be forefending you can be forefending they can be forefending
Perfect
I can have forefended you can have forefended he can have forefended we can have forefended you can have forefended they can have forefended
Perfect en V-ing
I can have been forefending you can have been forefending he can have been forefending we can have been forefending you can have been forefending they can have been forefending
Négation
Forme simple
I can't forefend you can't forefend he can't forefend we can't forefend you can't forefend they can't forefend
Forme en V-ing
I can't be forefending you can't be forefending he can't be forefending we can't be forefending you can't be forefending they can't be forefending
Perfect
I can't have forefended you can't have forefended he can't have forefended we can't have forefended you can't have forefended they can't have forefended
Perfect en V-ing
I can't have been forefending you can't have been forefending he can't have been forefending we can't have been forefending you can't have been forefending they can't have been forefending
Forme interrogative
Forme simple
can I forefend? can you forefend? can he forefend? can we forefend? can you forefend? can they forefend?
Forme en V-ing
can I be forefending? can you be forefending? can he be forefending? can we be forefending? can you be forefending? can they be forefending?
Perfect
can I have forefended? can you have forefended? can he have forefended? can we have forefended? can you have forefended? can they have forefended?
Perfect en V-ing
can I have been forefending? can you have been forefending? can he have been forefending? can we have been forefending? can you have been forefending? can they have been forefending?
Forme interro-négative
Forme simple
can't I forefend? can't you forefend? can't he forefend? can't we forefend? can't you forefend? can't they forefend?
Forme en V-ing
can't I be forefending? can't you be forefending? can't he be forefending? can't we be forefending? can't you be forefending? can't they be forefending?
Perfect
can't I have forefended? can't you have forefended? can't he have forefended? can't we have forefended? can't you have forefended? can't they have forefended?
Perfect en V-ing
can't I have been forefending? can't you have been forefending? can't he have been forefending? can't we have been forefending? can't you have been forefending? can't they have been forefending?