I can trephine you can trephine he can trephine we can trephine you can trephine they can trephine
Forme en V-ing
I can be trephining you can be trephining he can be trephining we can be trephining you can be trephining they can be trephining
Perfect
I can have trephined you can have trephined he can have trephined we can have trephined you can have trephined they can have trephined
Perfect en V-ing
I can have been trephining you can have been trephining he can have been trephining we can have been trephining you can have been trephining they can have been trephining
Négation
Forme simple
I can't trephine you can't trephine he can't trephine we can't trephine you can't trephine they can't trephine
Forme en V-ing
I can't be trephining you can't be trephining he can't be trephining we can't be trephining you can't be trephining they can't be trephining
Perfect
I can't have trephined you can't have trephined he can't have trephined we can't have trephined you can't have trephined they can't have trephined
Perfect en V-ing
I can't have been trephining you can't have been trephining he can't have been trephining we can't have been trephining you can't have been trephining they can't have been trephining
Forme interrogative
Forme simple
can I trephine? can you trephine? can he trephine? can we trephine? can you trephine? can they trephine?
Forme en V-ing
can I be trephining? can you be trephining? can he be trephining? can we be trephining? can you be trephining? can they be trephining?
Perfect
can I have trephined? can you have trephined? can he have trephined? can we have trephined? can you have trephined? can they have trephined?
Perfect en V-ing
can I have been trephining? can you have been trephining? can he have been trephining? can we have been trephining? can you have been trephining? can they have been trephining?
Forme interro-négative
Forme simple
can't I trephine? can't you trephine? can't he trephine? can't we trephine? can't you trephine? can't they trephine?
Forme en V-ing
can't I be trephining? can't you be trephining? can't he be trephining? can't we be trephining? can't you be trephining? can't they be trephining?
Perfect
can't I have trephined? can't you have trephined? can't he have trephined? can't we have trephined? can't you have trephined? can't they have trephined?
Perfect en V-ing
can't I have been trephining? can't you have been trephining? can't he have been trephining? can't we have been trephining? can't you have been trephining? can't they have been trephining?