Conjugação do verbo inglês
CAN PETITION

Verbo regular: petition - petitioned - petitioned

Afirmação

Forma simple	Forma com V-ing
I can petition you can petition he can petition we can petition you can petition they can petition	I can be petitioning you can be petitioning he can be petitioning we can be petitioning you can be petitioning they can be petitioning
Perfeito	Perfeito com V-ing
I can have petitioned you can have petitioned he can have petitioned we can have petitioned you can have petitioned they can have petitioned	I can have been petitioning you can have been petitioning he can have been petitioning we can have been petitioning you can have been petitioning they can have been petitioning

Negação

Forma simple	Forma com V-ing
I cannot petition you cannot petition he cannot petition we cannot petition you cannot petition they cannot petition	I cannot be petitioning you cannot be petitioning he cannot be petitioning we cannot be petitioning you cannot be petitioning they cannot be petitioning
Perfeito	Perfeito com V-ing
I cannot have petitioned you cannot have petitioned he cannot have petitioned we cannot have petitioned you cannot have petitioned they cannot have petitioned	I cannot have been petitioning you cannot have been petitioning he cannot have been petitioning we cannot have been petitioning you cannot have been petitioning they cannot have been petitioning

Forma interrogativa

Forma simple	Forma com V-ing
can I petition? can you petition? can he petition? can we petition? can you petition? can they petition?	can I be petitioning? can you be petitioning? can he be petitioning? can we be petitioning? can you be petitioning? can they be petitioning?
Perfeito	Perfeito com V-ing
can I have petitioned? can you have petitioned? can he have petitioned? can we have petitioned? can you have petitioned? can they have petitioned?	can I have been petitioning? can you have been petitioning? can he have been petitioning? can we have been petitioning? can you have been petitioning? can they have been petitioning?

Forma interro-Negação

Forma simple	Forma com V-ing
can I not petition? can you not petition? can he not petition? can we not petition? can you not petition? can they not petition?	can I not be petitioning? can you not be petitioning? can he not be petitioning? can we not be petitioning? can you not be petitioning? can they not be petitioning?
Perfeito	Perfeito com V-ing
can I not have petitioned? can you not have petitioned? can he not have petitioned? can we not have petitioned? can you not have petitioned? can they not have petitioned?	can I not have been petitioning? can you not have been petitioning? can he not have been petitioning? can we not have been petitioning? can you not have been petitioning? can they not have been petitioning?