could wrack
Verbo regular: wrack - wracked- wracked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could wrack
you could wrack
she could wrack
we could wrack
you could wrack
they could wrack 	I could be wracking
you could be wracking
she could be wracking
we could be wracking
you could be wracking
they could be wracking	I could have wracked
you could have wracked
she could have wracked
we could have wracked
you could have wracked
they could have wracked	I could have been wracking
you could have been wracking
she could have been wracking
we could have been wracking
you could have been wracking
they could have been wracking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not wrack
you could not wrack
she could not wrack
we could not wrack
you could not wrack
they could not wrack 	I could not be wracking
you could not be wracking
she could not be wracking
we could not be wracking
you could not be wracking
they could not be wracking	I could not have wracked
you could not have wracked
she could not have wracked
we could not have wracked
you could not have wracked
they could not have wracked	I could not have been wracking
you could not have been wracking
she could not have been wracking
we could not have been wracking
you could not have been wracking
they could not have been wracking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I wrack?
could you wrack?
could she wrack?
could we wrack?
could you wrack?
could they wrack? 	could I be wracking?
could you be wracking?
could she be wracking?
could we be wracking?
could you be wracking?
could they be wracking? 	could I have wracked?
could you have wracked?
could she have wracked?
could we have wracked?
could you have wracked?
could they have wracked? 	could I have been wracking?
could you have been wracking?
could she have been wracking?
could we have been wracking?
could you have been wracking?
could they have been wracking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not wrack?
could you not wrack?
could she not wrack?
could we not wrack?
could you not wrack?
could they not wrack? 	could I not be wracking?
could you not be wracking?
could she not be wracking?
could we not be wracking?
could you not be wracking?
could they not be wracking? 	could I not have wracked?
could you not have wracked?
could she not have wracked?
could we not have wracked?
could you not have wracked?
could they not have wracked? 	could I not have been wracking?
could you not have been wracking?
could she not have been wracking?
could we not have been wracking?
could you not have been wracking?
could they not have been wracking?