I can japan you can japan she can japan we can japan you can japan they can japan
Forma con V-ing
I can be japaning you can be japaning she can be japaning we can be japaning you can be japaning they can be japaning
Perfecto
I can have japaned you can have japaned she can have japaned we can have japaned you can have japaned they can have japaned
Perfecto con V-ing
I can have been japaning you can have been japaning she can have been japaning we can have been japaning you can have been japaning they can have been japaning
Negación
Forma simple
I can't japan you can't japan she can't japan we can't japan you can't japan they can't japan
Forma con V-ing
I can't be japaning you can't be japaning she can't be japaning we can't be japaning you can't be japaning they can't be japaning
Perfecto
I can't have japaned you can't have japaned she can't have japaned we can't have japaned you can't have japaned they can't have japaned
Perfecto con V-ing
I can't have been japaning you can't have been japaning she can't have been japaning we can't have been japaning you can't have been japaning they can't have been japaning
Forma interrogativa
Forma simple
can I japan? can you japan? can she japan? can we japan? can you japan? can they japan?
Forma con V-ing
can I be japaning? can you be japaning? can she be japaning? can we be japaning? can you be japaning? can they be japaning?
Perfecto
can I have japaned? can you have japaned? can she have japaned? can we have japaned? can you have japaned? can they have japaned?
Perfecto con V-ing
can I have been japaning? can you have been japaning? can she have been japaning? can we have been japaning? can you have been japaning? can they have been japaning?
Forma interro-negativa
Forma simple
can't I japan? can't you japan? can't she japan? can't we japan? can't you japan? can't they japan?
Forma con V-ing
can't I be japaning? can't you be japaning? can't she be japaning? can't we be japaning? can't you be japaning? can't they be japaning?
Perfecto
can't I have japaned? can't you have japaned? can't she have japaned? can't we have japaned? can't you have japaned? can't they have japaned?
Perfecto con V-ing
can't I have been japaning? can't you have been japaning? can't she have been japaning? can't we have been japaning? can't you have been japaning? can't they have been japaning?