Conjugación del verbo inglés
CAN POSTMARK

Verbo regular: postmark - postmarked - postmarked

Afirmación

Forma simple	Forma con V-ing
I can postmark you can postmark he can postmark we can postmark you can postmark they can postmark	I can be postmarking you can be postmarking he can be postmarking we can be postmarking you can be postmarking they can be postmarking
Perfecto	Perfecto con V-ing
I can have postmarked you can have postmarked he can have postmarked we can have postmarked you can have postmarked they can have postmarked	I can have been postmarking you can have been postmarking he can have been postmarking we can have been postmarking you can have been postmarking they can have been postmarking

Negación

Forma simple	Forma con V-ing
I can't postmark you can't postmark he can't postmark we can't postmark you can't postmark they can't postmark	I can't be postmarking you can't be postmarking he can't be postmarking we can't be postmarking you can't be postmarking they can't be postmarking
Perfecto	Perfecto con V-ing
I can't have postmarked you can't have postmarked he can't have postmarked we can't have postmarked you can't have postmarked they can't have postmarked	I can't have been postmarking you can't have been postmarking he can't have been postmarking we can't have been postmarking you can't have been postmarking they can't have been postmarking

Forma interrogativa

Forma simple	Forma con V-ing
can I postmark? can you postmark? can he postmark? can we postmark? can you postmark? can they postmark?	can I be postmarking? can you be postmarking? can he be postmarking? can we be postmarking? can you be postmarking? can they be postmarking?
Perfecto	Perfecto con V-ing
can I have postmarked? can you have postmarked? can he have postmarked? can we have postmarked? can you have postmarked? can they have postmarked?	can I have been postmarking? can you have been postmarking? can he have been postmarking? can we have been postmarking? can you have been postmarking? can they have been postmarking?

Forma interro-negativa

Forma simple	Forma con V-ing
can't I postmark? can't you postmark? can't he postmark? can't we postmark? can't you postmark? can't they postmark?	can't I be postmarking? can't you be postmarking? can't he be postmarking? can't we be postmarking? can't you be postmarking? can't they be postmarking?
Perfecto	Perfecto con V-ing
can't I have postmarked? can't you have postmarked? can't he have postmarked? can't we have postmarked? can't you have postmarked? can't they have postmarked?	can't I have been postmarking? can't you have been postmarking? can't he have been postmarking? can't we have been postmarking? can't you have been postmarking? can't they have been postmarking?