I can say you can say he can say we can say you can say they can say
Forma con V-ing
I can be saying you can be saying he can be saying we can be saying you can be saying they can be saying
Perfecto
I can have said you can have said he can have said we can have said you can have said they can have said
Perfecto con V-ing
I can have been saying you can have been saying he can have been saying we can have been saying you can have been saying they can have been saying
Negación
Forma simple
I can't say you can't say he can't say we can't say you can't say they can't say
Forma con V-ing
I can't be saying you can't be saying he can't be saying we can't be saying you can't be saying they can't be saying
Perfecto
I can't have said you can't have said he can't have said we can't have said you can't have said they can't have said
Perfecto con V-ing
I can't have been saying you can't have been saying he can't have been saying we can't have been saying you can't have been saying they can't have been saying
Forma interrogativa
Forma simple
can I say? can you say? can he say? can we say? can you say? can they say?
Forma con V-ing
can I be saying? can you be saying? can he be saying? can we be saying? can you be saying? can they be saying?
Perfecto
can I have said? can you have said? can he have said? can we have said? can you have said? can they have said?
Perfecto con V-ing
can I have been saying? can you have been saying? can he have been saying? can we have been saying? can you have been saying? can they have been saying?
Forma interro-negativa
Forma simple
can't I say? can't you say? can't he say? can't we say? can't you say? can't they say?
Forma con V-ing
can't I be saying? can't you be saying? can't he be saying? can't we be saying? can't you be saying? can't they be saying?
Perfecto
can't I have said? can't you have said? can't he have said? can't we have said? can't you have said? can't they have said?
Perfecto con V-ing
can't I have been saying? can't you have been saying? can't he have been saying? can't we have been saying? can't you have been saying? can't they have been saying?