I can try you can try she can try we can try you can try they can try
Forma com V-ing
I can be trying you can be trying she can be trying we can be trying you can be trying they can be trying
Perfeito
I can have tried you can have tried she can have tried we can have tried you can have tried they can have tried
Perfeito com V-ing
I can have been trying you can have been trying she can have been trying we can have been trying you can have been trying they can have been trying
Negação
Forma simple
I cannot try you cannot try she cannot try we cannot try you cannot try they cannot try
Forma com V-ing
I cannot be trying you cannot be trying she cannot be trying we cannot be trying you cannot be trying they cannot be trying
Perfeito
I cannot have tried you cannot have tried she cannot have tried we cannot have tried you cannot have tried they cannot have tried
Perfeito com V-ing
I cannot have been trying you cannot have been trying she cannot have been trying we cannot have been trying you cannot have been trying they cannot have been trying
Forma interrogativa
Forma simple
can I try? can you try? can she try? can we try? can you try? can they try?
Forma com V-ing
can I be trying? can you be trying? can she be trying? can we be trying? can you be trying? can they be trying?
Perfeito
can I have tried? can you have tried? can she have tried? can we have tried? can you have tried? can they have tried?
Perfeito com V-ing
can I have been trying? can you have been trying? can she have been trying? can we have been trying? can you have been trying? can they have been trying?
Forma interro-Negação
Forma simple
can I not try? can you not try? can she not try? can we not try? can you not try? can they not try?
Forma com V-ing
can I not be trying? can you not be trying? can she not be trying? can we not be trying? can you not be trying? can they not be trying?
Perfeito
can I not have tried? can you not have tried? can she not have tried? can we not have tried? can you not have tried? can they not have tried?
Perfeito com V-ing
can I not have been trying? can you not have been trying? can she not have been trying? can we not have been trying? can you not have been trying? can they not have been trying?