I can counter you can counter she can counter we can counter you can counter they can counter
Forma com V-ing
I can be countering you can be countering she can be countering we can be countering you can be countering they can be countering
Perfeito
I can have countered you can have countered she can have countered we can have countered you can have countered they can have countered
Perfeito com V-ing
I can have been countering you can have been countering she can have been countering we can have been countering you can have been countering they can have been countering
Negação
Forma simple
I cannot counter you cannot counter she cannot counter we cannot counter you cannot counter they cannot counter
Forma com V-ing
I cannot be countering you cannot be countering she cannot be countering we cannot be countering you cannot be countering they cannot be countering
Perfeito
I cannot have countered you cannot have countered she cannot have countered we cannot have countered you cannot have countered they cannot have countered
Perfeito com V-ing
I cannot have been countering you cannot have been countering she cannot have been countering we cannot have been countering you cannot have been countering they cannot have been countering
Forma interrogativa
Forma simple
can I counter? can you counter? can she counter? can we counter? can you counter? can they counter?
Forma com V-ing
can I be countering? can you be countering? can she be countering? can we be countering? can you be countering? can they be countering?
Perfeito
can I have countered? can you have countered? can she have countered? can we have countered? can you have countered? can they have countered?
Perfeito com V-ing
can I have been countering? can you have been countering? can she have been countering? can we have been countering? can you have been countering? can they have been countering?
Forma interro-Negação
Forma simple
can I not counter? can you not counter? can she not counter? can we not counter? can you not counter? can they not counter?
Forma com V-ing
can I not be countering? can you not be countering? can she not be countering? can we not be countering? can you not be countering? can they not be countering?
Perfeito
can I not have countered? can you not have countered? can she not have countered? can we not have countered? can you not have countered? can they not have countered?
Perfeito com V-ing
can I not have been countering? can you not have been countering? can she not have been countering? can we not have been countering? can you not have been countering? can they not have been countering?