I can excuse you can excuse she can excuse we can excuse you can excuse they can excuse
Forma com V-ing
I can be excusing you can be excusing she can be excusing we can be excusing you can be excusing they can be excusing
Perfeito
I can have excused you can have excused she can have excused we can have excused you can have excused they can have excused
Perfeito com V-ing
I can have been excusing you can have been excusing she can have been excusing we can have been excusing you can have been excusing they can have been excusing
Negação
Forma simple
I cannot excuse you cannot excuse she cannot excuse we cannot excuse you cannot excuse they cannot excuse
Forma com V-ing
I cannot be excusing you cannot be excusing she cannot be excusing we cannot be excusing you cannot be excusing they cannot be excusing
Perfeito
I cannot have excused you cannot have excused she cannot have excused we cannot have excused you cannot have excused they cannot have excused
Perfeito com V-ing
I cannot have been excusing you cannot have been excusing she cannot have been excusing we cannot have been excusing you cannot have been excusing they cannot have been excusing
Forma interrogativa
Forma simple
can I excuse? can you excuse? can she excuse? can we excuse? can you excuse? can they excuse?
Forma com V-ing
can I be excusing? can you be excusing? can she be excusing? can we be excusing? can you be excusing? can they be excusing?
Perfeito
can I have excused? can you have excused? can she have excused? can we have excused? can you have excused? can they have excused?
Perfeito com V-ing
can I have been excusing? can you have been excusing? can she have been excusing? can we have been excusing? can you have been excusing? can they have been excusing?
Forma interro-Negação
Forma simple
can I not excuse? can you not excuse? can she not excuse? can we not excuse? can you not excuse? can they not excuse?
Forma com V-ing
can I not be excusing? can you not be excusing? can she not be excusing? can we not be excusing? can you not be excusing? can they not be excusing?
Perfeito
can I not have excused? can you not have excused? can she not have excused? can we not have excused? can you not have excused? can they not have excused?
Perfeito com V-ing
can I not have been excusing? can you not have been excusing? can she not have been excusing? can we not have been excusing? can you not have been excusing? can they not have been excusing?