I can select you can select he can select we can select you can select they can select
Forma con V-ing
I can be selecting you can be selecting he can be selecting we can be selecting you can be selecting they can be selecting
Perfecto
I can have selected you can have selected he can have selected we can have selected you can have selected they can have selected
Perfecto con V-ing
I can have been selecting you can have been selecting he can have been selecting we can have been selecting you can have been selecting they can have been selecting
Negación
Forma simple
I cannot select you cannot select he cannot select we cannot select you cannot select they cannot select
Forma con V-ing
I cannot be selecting you cannot be selecting he cannot be selecting we cannot be selecting you cannot be selecting they cannot be selecting
Perfecto
I cannot have selected you cannot have selected he cannot have selected we cannot have selected you cannot have selected they cannot have selected
Perfecto con V-ing
I cannot have been selecting you cannot have been selecting he cannot have been selecting we cannot have been selecting you cannot have been selecting they cannot have been selecting
Forma interrogativa
Forma simple
can I select? can you select? can he select? can we select? can you select? can they select?
Forma con V-ing
can I be selecting? can you be selecting? can he be selecting? can we be selecting? can you be selecting? can they be selecting?
Perfecto
can I have selected? can you have selected? can he have selected? can we have selected? can you have selected? can they have selected?
Perfecto con V-ing
can I have been selecting? can you have been selecting? can he have been selecting? can we have been selecting? can you have been selecting? can they have been selecting?
Forma interro-negativa
Forma simple
can I not select? can you not select? can he not select? can we not select? can you not select? can they not select?
Forma con V-ing
can I not be selecting? can you not be selecting? can he not be selecting? can we not be selecting? can you not be selecting? can they not be selecting?
Perfecto
can I not have selected? can you not have selected? can he not have selected? can we not have selected? can you not have selected? can they not have selected?
Perfecto con V-ing
can I not have been selecting? can you not have been selecting? can he not have been selecting? can we not have been selecting? can you not have been selecting? can they not have been selecting?