I can counter you can counter he can counter we can counter you can counter they can counter
Forme en V-ing
I can be countering you can be countering he can be countering we can be countering you can be countering they can be countering
Perfect
I can have countered you can have countered he can have countered we can have countered you can have countered they can have countered
Perfect en V-ing
I can have been countering you can have been countering he can have been countering we can have been countering you can have been countering they can have been countering
Négation
Forme simple
I can't counter you can't counter he can't counter we can't counter you can't counter they can't counter
Forme en V-ing
I can't be countering you can't be countering he can't be countering we can't be countering you can't be countering they can't be countering
Perfect
I can't have countered you can't have countered he can't have countered we can't have countered you can't have countered they can't have countered
Perfect en V-ing
I can't have been countering you can't have been countering he can't have been countering we can't have been countering you can't have been countering they can't have been countering
Forme interrogative
Forme simple
can I counter? can you counter? can he counter? can we counter? can you counter? can they counter?
Forme en V-ing
can I be countering? can you be countering? can he be countering? can we be countering? can you be countering? can they be countering?
Perfect
can I have countered? can you have countered? can he have countered? can we have countered? can you have countered? can they have countered?
Perfect en V-ing
can I have been countering? can you have been countering? can he have been countering? can we have been countering? can you have been countering? can they have been countering?
Forme interro-négative
Forme simple
can't I counter? can't you counter? can't he counter? can't we counter? can't you counter? can't they counter?
Forme en V-ing
can't I be countering? can't you be countering? can't he be countering? can't we be countering? can't you be countering? can't they be countering?
Perfect
can't I have countered? can't you have countered? can't he have countered? can't we have countered? can't you have countered? can't they have countered?
Perfect en V-ing
can't I have been countering? can't you have been countering? can't he have been countering? can't we have been countering? can't you have been countering? can't they have been countering?