can question
Verbo regular: question - questioned- questioned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can question
you can question
she can question
we can question
you can question
they can question 	I can be questioning
you can be questioning
she can be questioning
we can be questioning
you can be questioning
they can be questioning	I can have questioned
you can have questioned
she can have questioned
we can have questioned
you can have questioned
they can have questioned	I can have been questioning
you can have been questioning
she can have been questioning
we can have been questioning
you can have been questioning
they can have been questioning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot question
you cannot question
she cannot question
we cannot question
you cannot question
they cannot question 	I cannot be questioning
you cannot be questioning
she cannot be questioning
we cannot be questioning
you cannot be questioning
they cannot be questioning	I cannot have questioned
you cannot have questioned
she cannot have questioned
we cannot have questioned
you cannot have questioned
they cannot have questioned	I cannot have been questioning
you cannot have been questioning
she cannot have been questioning
we cannot have been questioning
you cannot have been questioning
they cannot have been questioning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I question?
can you question?
can she question?
can we question?
can you question?
can they question? 	can I be questioning?
can you be questioning?
can she be questioning?
can we be questioning?
can you be questioning?
can they be questioning? 	can I have questioned?
can you have questioned?
can she have questioned?
can we have questioned?
can you have questioned?
can they have questioned? 	can I have been questioning?
can you have been questioning?
can she have been questioning?
can we have been questioning?
can you have been questioning?
can they have been questioning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not question?
can you not question?
can she not question?
can we not question?
can you not question?
can they not question? 	can I not be questioning?
can you not be questioning?
can she not be questioning?
can we not be questioning?
can you not be questioning?
can they not be questioning? 	can I not have questioned?
can you not have questioned?
can she not have questioned?
can we not have questioned?
can you not have questioned?
can they not have questioned? 	can I not have been questioning?
can you not have been questioning?
can she not have been questioning?
can we not have been questioning?
can you not have been questioning?
can they not have been questioning?