I can attain you can attain he can attain we can attain you can attain they can attain
Forma con V-ing
I can be attaining you can be attaining he can be attaining we can be attaining you can be attaining they can be attaining
Perfecto
I can have attained you can have attained he can have attained we can have attained you can have attained they can have attained
Perfecto con V-ing
I can have been attaining you can have been attaining he can have been attaining we can have been attaining you can have been attaining they can have been attaining
Negación
Forma simple
I can't attain you can't attain he can't attain we can't attain you can't attain they can't attain
Forma con V-ing
I can't be attaining you can't be attaining he can't be attaining we can't be attaining you can't be attaining they can't be attaining
Perfecto
I can't have attained you can't have attained he can't have attained we can't have attained you can't have attained they can't have attained
Perfecto con V-ing
I can't have been attaining you can't have been attaining he can't have been attaining we can't have been attaining you can't have been attaining they can't have been attaining
Forma interrogativa
Forma simple
can I attain? can you attain? can he attain? can we attain? can you attain? can they attain?
Forma con V-ing
can I be attaining? can you be attaining? can he be attaining? can we be attaining? can you be attaining? can they be attaining?
Perfecto
can I have attained? can you have attained? can he have attained? can we have attained? can you have attained? can they have attained?
Perfecto con V-ing
can I have been attaining? can you have been attaining? can he have been attaining? can we have been attaining? can you have been attaining? can they have been attaining?
Forma interro-negativa
Forma simple
can't I attain? can't you attain? can't he attain? can't we attain? can't you attain? can't they attain?
Forma con V-ing
can't I be attaining? can't you be attaining? can't he be attaining? can't we be attaining? can't you be attaining? can't they be attaining?
Perfecto
can't I have attained? can't you have attained? can't he have attained? can't we have attained? can't you have attained? can't they have attained?
Perfecto con V-ing
can't I have been attaining? can't you have been attaining? can't he have been attaining? can't we have been attaining? can't you have been attaining? can't they have been attaining?