Conjugação do verbo inglês
CAN BOX

Verbo regular: box - boxed - boxed

Afirmação

Forma simple	Forma com V-ing
I can box you can box he can box we can box you can box they can box	I can be boxing you can be boxing he can be boxing we can be boxing you can be boxing they can be boxing
Perfeito	Perfeito com V-ing
I can have boxed you can have boxed he can have boxed we can have boxed you can have boxed they can have boxed	I can have been boxing you can have been boxing he can have been boxing we can have been boxing you can have been boxing they can have been boxing

Negação

Forma simple	Forma com V-ing
I can't box you can't box he can't box we can't box you can't box they can't box	I can't be boxing you can't be boxing he can't be boxing we can't be boxing you can't be boxing they can't be boxing
Perfeito	Perfeito com V-ing
I can't have boxed you can't have boxed he can't have boxed we can't have boxed you can't have boxed they can't have boxed	I can't have been boxing you can't have been boxing he can't have been boxing we can't have been boxing you can't have been boxing they can't have been boxing

Forma interrogativa

Forma simple	Forma com V-ing
can I box? can you box? can he box? can we box? can you box? can they box?	can I be boxing? can you be boxing? can he be boxing? can we be boxing? can you be boxing? can they be boxing?
Perfeito	Perfeito com V-ing
can I have boxed? can you have boxed? can he have boxed? can we have boxed? can you have boxed? can they have boxed?	can I have been boxing? can you have been boxing? can he have been boxing? can we have been boxing? can you have been boxing? can they have been boxing?

Forma interro-Negação

Forma simple	Forma com V-ing
can't I box? can't you box? can't he box? can't we box? can't you box? can't they box?	can't I be boxing? can't you be boxing? can't he be boxing? can't we be boxing? can't you be boxing? can't they be boxing?
Perfeito	Perfeito com V-ing
can't I have boxed? can't you have boxed? can't he have boxed? can't we have boxed? can't you have boxed? can't they have boxed?	can't I have been boxing? can't you have been boxing? can't he have been boxing? can't we have been boxing? can't you have been boxing? can't they have been boxing?