can study
Verbo regular: study - studied- studied

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can study
you can study
she can study
we can study
you can study
they can study 	I can be studying
you can be studying
she can be studying
we can be studying
you can be studying
they can be studying	I can have studied
you can have studied
she can have studied
we can have studied
you can have studied
they can have studied	I can have been studying
you can have been studying
she can have been studying
we can have been studying
you can have been studying
they can have been studying	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't study
you can't study
she can't study
we can't study
you can't study
they can't study 	I can't be studying
you can't be studying
she can't be studying
we can't be studying
you can't be studying
they can't be studying	I can't have studied
you can't have studied
she can't have studied
we can't have studied
you can't have studied
they can't have studied	I can't have been studying
you can't have been studying
she can't have been studying
we can't have been studying
you can't have been studying
they can't have been studying	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I study?
can you study?
can she study?
can we study?
can you study?
can they study? 	can I be studying?
can you be studying?
can she be studying?
can we be studying?
can you be studying?
can they be studying? 	can I have studied?
can you have studied?
can she have studied?
can we have studied?
can you have studied?
can they have studied? 	can I have been studying?
can you have been studying?
can she have been studying?
can we have been studying?
can you have been studying?
can they have been studying? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I study?
can't you study?
can't she study?
can't we study?
can't you study?
can't they study? 	can't I be studying?
can't you be studying?
can't she be studying?
can't we be studying?
can't you be studying?
can't they be studying? 	can't I have studied?
can't you have studied?
can't she have studied?
can't we have studied?
can't you have studied?
can't they have studied? 	can't I have been studying?
can't you have been studying?
can't she have been studying?
can't we have been studying?
can't you have been studying?
can't they have been studying?