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 can't try you can't try she can't try we can't try you can't try they can't try
Forma com V-ing
I can't be trying you can't be trying she can't be trying we can't be trying you can't be trying they can't be trying
Perfeito
I can't have tried you can't have tried she can't have tried we can't have tried you can't have tried they can't have tried
Perfeito com V-ing
I can't have been trying you can't have been trying she can't have been trying we can't have been trying you can't have been trying they can't 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't I try? can't you try? can't she try? can't we try? can't you try? can't they try?
Forma com V-ing
can't I be trying? can't you be trying? can't she be trying? can't we be trying? can't you be trying? can't they be trying?
Perfeito
can't I have tried? can't you have tried? can't she have tried? can't we have tried? can't you have tried? can't they have tried?
Perfeito com V-ing
can't I have been trying? can't you have been trying? can't she have been trying? can't we have been trying? can't you have been trying? can't they have been trying?