can modify
Verbo regular: modify - modified- modified

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can modify
you can modify
he can modify
we can modify
you can modify
they can modify 	I can be modifying
you can be modifying
he can be modifying
we can be modifying
you can be modifying
they can be modifying	I can have modified
you can have modified
he can have modified
we can have modified
you can have modified
they can have modified	I can have been modifying
you can have been modifying
he can have been modifying
we can have been modifying
you can have been modifying
they can have been modifying	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot modify
you cannot modify
he cannot modify
we cannot modify
you cannot modify
they cannot modify 	I cannot be modifying
you cannot be modifying
he cannot be modifying
we cannot be modifying
you cannot be modifying
they cannot be modifying	I cannot have modified
you cannot have modified
he cannot have modified
we cannot have modified
you cannot have modified
they cannot have modified	I cannot have been modifying
you cannot have been modifying
he cannot have been modifying
we cannot have been modifying
you cannot have been modifying
they cannot have been modifying	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I modify?
can you modify?
can he modify?
can we modify?
can you modify?
can they modify? 	can I be modifying?
can you be modifying?
can he be modifying?
can we be modifying?
can you be modifying?
can they be modifying? 	can I have modified?
can you have modified?
can he have modified?
can we have modified?
can you have modified?
can they have modified? 	can I have been modifying?
can you have been modifying?
can he have been modifying?
can we have been modifying?
can you have been modifying?
can they have been modifying? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not modify?
can you not modify?
can he not modify?
can we not modify?
can you not modify?
can they not modify? 	can I not be modifying?
can you not be modifying?
can he not be modifying?
can we not be modifying?
can you not be modifying?
can they not be modifying? 	can I not have modified?
can you not have modified?
can he not have modified?
can we not have modified?
can you not have modified?
can they not have modified? 	can I not have been modifying?
can you not have been modifying?
can he not have been modifying?
can we not have been modifying?
can you not have been modifying?
can they not have been modifying?