could apprentice
Verbo regular: apprentice - apprenticed- apprenticed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could apprentice
you could apprentice
he could apprentice
we could apprentice
you could apprentice
they could apprentice 	I could be apprenticing
you could be apprenticing
he could be apprenticing
we could be apprenticing
you could be apprenticing
they could be apprenticing	I could have apprenticed
you could have apprenticed
he could have apprenticed
we could have apprenticed
you could have apprenticed
they could have apprenticed	I could have been apprenticing
you could have been apprenticing
he could have been apprenticing
we could have been apprenticing
you could have been apprenticing
they could have been apprenticing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not apprentice
you could not apprentice
he could not apprentice
we could not apprentice
you could not apprentice
they could not apprentice 	I could not be apprenticing
you could not be apprenticing
he could not be apprenticing
we could not be apprenticing
you could not be apprenticing
they could not be apprenticing	I could not have apprenticed
you could not have apprenticed
he could not have apprenticed
we could not have apprenticed
you could not have apprenticed
they could not have apprenticed	I could not have been apprenticing
you could not have been apprenticing
he could not have been apprenticing
we could not have been apprenticing
you could not have been apprenticing
they could not have been apprenticing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I apprentice?
could you apprentice?
could he apprentice?
could we apprentice?
could you apprentice?
could they apprentice? 	could I be apprenticing?
could you be apprenticing?
could he be apprenticing?
could we be apprenticing?
could you be apprenticing?
could they be apprenticing? 	could I have apprenticed?
could you have apprenticed?
could he have apprenticed?
could we have apprenticed?
could you have apprenticed?
could they have apprenticed? 	could I have been apprenticing?
could you have been apprenticing?
could he have been apprenticing?
could we have been apprenticing?
could you have been apprenticing?
could they have been apprenticing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not apprentice?
could you not apprentice?
could he not apprentice?
could we not apprentice?
could you not apprentice?
could they not apprentice? 	could I not be apprenticing?
could you not be apprenticing?
could he not be apprenticing?
could we not be apprenticing?
could you not be apprenticing?
could they not be apprenticing? 	could I not have apprenticed?
could you not have apprenticed?
could he not have apprenticed?
could we not have apprenticed?
could you not have apprenticed?
could they not have apprenticed? 	could I not have been apprenticing?
could you not have been apprenticing?
could he not have been apprenticing?
could we not have been apprenticing?
could you not have been apprenticing?
could they not have been apprenticing?