Conjugación del verbo inglés
CAN PIERCE

Verbo regular: pierce - pierced - pierced

Afirmación

Forma simple	Forma con V-ing
I can pierce you can pierce he can pierce we can pierce you can pierce they can pierce	I can be piercing you can be piercing he can be piercing we can be piercing you can be piercing they can be piercing
Perfecto	Perfecto con V-ing
I can have pierced you can have pierced he can have pierced we can have pierced you can have pierced they can have pierced	I can have been piercing you can have been piercing he can have been piercing we can have been piercing you can have been piercing they can have been piercing

Negación

Forma simple	Forma con V-ing
I can't pierce you can't pierce he can't pierce we can't pierce you can't pierce they can't pierce	I can't be piercing you can't be piercing he can't be piercing we can't be piercing you can't be piercing they can't be piercing
Perfecto	Perfecto con V-ing
I can't have pierced you can't have pierced he can't have pierced we can't have pierced you can't have pierced they can't have pierced	I can't have been piercing you can't have been piercing he can't have been piercing we can't have been piercing you can't have been piercing they can't have been piercing

Forma interrogativa

Forma simple	Forma con V-ing
can I pierce? can you pierce? can he pierce? can we pierce? can you pierce? can they pierce?	can I be piercing? can you be piercing? can he be piercing? can we be piercing? can you be piercing? can they be piercing?
Perfecto	Perfecto con V-ing
can I have pierced? can you have pierced? can he have pierced? can we have pierced? can you have pierced? can they have pierced?	can I have been piercing? can you have been piercing? can he have been piercing? can we have been piercing? can you have been piercing? can they have been piercing?

Forma interro-negativa

Forma simple	Forma con V-ing
can't I pierce? can't you pierce? can't he pierce? can't we pierce? can't you pierce? can't they pierce?	can't I be piercing? can't you be piercing? can't he be piercing? can't we be piercing? can't you be piercing? can't they be piercing?
Perfecto	Perfecto con V-ing
can't I have pierced? can't you have pierced? can't he have pierced? can't we have pierced? can't you have pierced? can't they have pierced?	can't I have been piercing? can't you have been piercing? can't he have been piercing? can't we have been piercing? can't you have been piercing? can't they have been piercing?