I can practice you can practice she can practice we can practice you can practice they can practice
Forma con V-ing
I can be practicing you can be practicing she can be practicing we can be practicing you can be practicing they can be practicing
Perfecto
I can have practiced you can have practiced she can have practiced we can have practiced you can have practiced they can have practiced
Perfecto con V-ing
I can have been practicing you can have been practicing she can have been practicing we can have been practicing you can have been practicing they can have been practicing
Negación
Forma simple
I can't practice you can't practice she can't practice we can't practice you can't practice they can't practice
Forma con V-ing
I can't be practicing you can't be practicing she can't be practicing we can't be practicing you can't be practicing they can't be practicing
Perfecto
I can't have practiced you can't have practiced she can't have practiced we can't have practiced you can't have practiced they can't have practiced
Perfecto con V-ing
I can't have been practicing you can't have been practicing she can't have been practicing we can't have been practicing you can't have been practicing they can't have been practicing
Forma interrogativa
Forma simple
can I practice? can you practice? can she practice? can we practice? can you practice? can they practice?
Forma con V-ing
can I be practicing? can you be practicing? can she be practicing? can we be practicing? can you be practicing? can they be practicing?
Perfecto
can I have practiced? can you have practiced? can she have practiced? can we have practiced? can you have practiced? can they have practiced?
Perfecto con V-ing
can I have been practicing? can you have been practicing? can she have been practicing? can we have been practicing? can you have been practicing? can they have been practicing?
Forma interro-negativa
Forma simple
can't I practice? can't you practice? can't she practice? can't we practice? can't you practice? can't they practice?
Forma con V-ing
can't I be practicing? can't you be practicing? can't she be practicing? can't we be practicing? can't you be practicing? can't they be practicing?
Perfecto
can't I have practiced? can't you have practiced? can't she have practiced? can't we have practiced? can't you have practiced? can't they have practiced?
Perfecto con V-ing
can't I have been practicing? can't you have been practicing? can't she have been practicing? can't we have been practicing? can't you have been practicing? can't they have been practicing?