I can stamp you can stamp he can stamp we can stamp you can stamp they can stamp
Forma com V-ing
I can be stamping you can be stamping he can be stamping we can be stamping you can be stamping they can be stamping
Perfeito
I can have stamped you can have stamped he can have stamped we can have stamped you can have stamped they can have stamped
Perfeito com V-ing
I can have been stamping you can have been stamping he can have been stamping we can have been stamping you can have been stamping they can have been stamping
Negação
Forma simple
I cannot stamp you cannot stamp he cannot stamp we cannot stamp you cannot stamp they cannot stamp
Forma com V-ing
I cannot be stamping you cannot be stamping he cannot be stamping we cannot be stamping you cannot be stamping they cannot be stamping
Perfeito
I cannot have stamped you cannot have stamped he cannot have stamped we cannot have stamped you cannot have stamped they cannot have stamped
Perfeito com V-ing
I cannot have been stamping you cannot have been stamping he cannot have been stamping we cannot have been stamping you cannot have been stamping they cannot have been stamping
Forma interrogativa
Forma simple
can I stamp? can you stamp? can he stamp? can we stamp? can you stamp? can they stamp?
Forma com V-ing
can I be stamping? can you be stamping? can he be stamping? can we be stamping? can you be stamping? can they be stamping?
Perfeito
can I have stamped? can you have stamped? can he have stamped? can we have stamped? can you have stamped? can they have stamped?
Perfeito com V-ing
can I have been stamping? can you have been stamping? can he have been stamping? can we have been stamping? can you have been stamping? can they have been stamping?
Forma interro-Negação
Forma simple
can I not stamp? can you not stamp? can he not stamp? can we not stamp? can you not stamp? can they not stamp?
Forma com V-ing
can I not be stamping? can you not be stamping? can he not be stamping? can we not be stamping? can you not be stamping? can they not be stamping?
Perfeito
can I not have stamped? can you not have stamped? can he not have stamped? can we not have stamped? can you not have stamped? can they not have stamped?
Perfeito com V-ing
can I not have been stamping? can you not have been stamping? can he not have been stamping? can we not have been stamping? can you not have been stamping? can they not have been stamping?