Conjugação do verbo inglês
CAN CHALLENGE

Verbo regular: challenge - challenged - challenged

Afirmação

Forma simple	Forma com V-ing
I can challenge you can challenge he can challenge we can challenge you can challenge they can challenge	I can be challenging you can be challenging he can be challenging we can be challenging you can be challenging they can be challenging
Perfeito	Perfeito com V-ing
I can have challenged you can have challenged he can have challenged we can have challenged you can have challenged they can have challenged	I can have been challenging you can have been challenging he can have been challenging we can have been challenging you can have been challenging they can have been challenging

Negação

Forma simple	Forma com V-ing
I cannot challenge you cannot challenge he cannot challenge we cannot challenge you cannot challenge they cannot challenge	I cannot be challenging you cannot be challenging he cannot be challenging we cannot be challenging you cannot be challenging they cannot be challenging
Perfeito	Perfeito com V-ing
I cannot have challenged you cannot have challenged he cannot have challenged we cannot have challenged you cannot have challenged they cannot have challenged	I cannot have been challenging you cannot have been challenging he cannot have been challenging we cannot have been challenging you cannot have been challenging they cannot have been challenging

Forma interrogativa

Forma simple	Forma com V-ing
can I challenge? can you challenge? can he challenge? can we challenge? can you challenge? can they challenge?	can I be challenging? can you be challenging? can he be challenging? can we be challenging? can you be challenging? can they be challenging?
Perfeito	Perfeito com V-ing
can I have challenged? can you have challenged? can he have challenged? can we have challenged? can you have challenged? can they have challenged?	can I have been challenging? can you have been challenging? can he have been challenging? can we have been challenging? can you have been challenging? can they have been challenging?

Forma interro-Negação

Forma simple	Forma com V-ing
can I not challenge? can you not challenge? can he not challenge? can we not challenge? can you not challenge? can they not challenge?	can I not be challenging? can you not be challenging? can he not be challenging? can we not be challenging? can you not be challenging? can they not be challenging?
Perfeito	Perfeito com V-ing
can I not have challenged? can you not have challenged? can he not have challenged? can we not have challenged? can you not have challenged? can they not have challenged?	can I not have been challenging? can you not have been challenging? can he not have been challenging? can we not have been challenging? can you not have been challenging? can they not have been challenging?