I can appear you can appear he can appear we can appear you can appear they can appear
Forma con V-ing
I can be appearing you can be appearing he can be appearing we can be appearing you can be appearing they can be appearing
Perfecto
I can have appeared you can have appeared he can have appeared we can have appeared you can have appeared they can have appeared
Perfecto con V-ing
I can have been appearing you can have been appearing he can have been appearing we can have been appearing you can have been appearing they can have been appearing
Negación
Forma simple
I can't appear you can't appear he can't appear we can't appear you can't appear they can't appear
Forma con V-ing
I can't be appearing you can't be appearing he can't be appearing we can't be appearing you can't be appearing they can't be appearing
Perfecto
I can't have appeared you can't have appeared he can't have appeared we can't have appeared you can't have appeared they can't have appeared
Perfecto con V-ing
I can't have been appearing you can't have been appearing he can't have been appearing we can't have been appearing you can't have been appearing they can't have been appearing
Forma interrogativa
Forma simple
can I appear? can you appear? can he appear? can we appear? can you appear? can they appear?
Forma con V-ing
can I be appearing? can you be appearing? can he be appearing? can we be appearing? can you be appearing? can they be appearing?
Perfecto
can I have appeared? can you have appeared? can he have appeared? can we have appeared? can you have appeared? can they have appeared?
Perfecto con V-ing
can I have been appearing? can you have been appearing? can he have been appearing? can we have been appearing? can you have been appearing? can they have been appearing?
Forma interro-negativa
Forma simple
can't I appear? can't you appear? can't he appear? can't we appear? can't you appear? can't they appear?
Forma con V-ing
can't I be appearing? can't you be appearing? can't he be appearing? can't we be appearing? can't you be appearing? can't they be appearing?
Perfecto
can't I have appeared? can't you have appeared? can't he have appeared? can't we have appeared? can't you have appeared? can't they have appeared?
Perfecto con V-ing
can't I have been appearing? can't you have been appearing? can't he have been appearing? can't we have been appearing? can't you have been appearing? can't they have been appearing?