could upend
Verbo regular: upend - upended- upended

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could upend
you could upend
she could upend
we could upend
you could upend
they could upend 	I could be upending
you could be upending
she could be upending
we could be upending
you could be upending
they could be upending	I could have upended
you could have upended
she could have upended
we could have upended
you could have upended
they could have upended	I could have been upending
you could have been upending
she could have been upending
we could have been upending
you could have been upending
they could have been upending	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not upend
you could not upend
she could not upend
we could not upend
you could not upend
they could not upend 	I could not be upending
you could not be upending
she could not be upending
we could not be upending
you could not be upending
they could not be upending	I could not have upended
you could not have upended
she could not have upended
we could not have upended
you could not have upended
they could not have upended	I could not have been upending
you could not have been upending
she could not have been upending
we could not have been upending
you could not have been upending
they could not have been upending	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I upend?
could you upend?
could she upend?
could we upend?
could you upend?
could they upend? 	could I be upending?
could you be upending?
could she be upending?
could we be upending?
could you be upending?
could they be upending? 	could I have upended?
could you have upended?
could she have upended?
could we have upended?
could you have upended?
could they have upended? 	could I have been upending?
could you have been upending?
could she have been upending?
could we have been upending?
could you have been upending?
could they have been upending? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not upend?
could you not upend?
could she not upend?
could we not upend?
could you not upend?
could they not upend? 	could I not be upending?
could you not be upending?
could she not be upending?
could we not be upending?
could you not be upending?
could they not be upending? 	could I not have upended?
could you not have upended?
could she not have upended?
could we not have upended?
could you not have upended?
could they not have upended? 	could I not have been upending?
could you not have been upending?
could she not have been upending?
could we not have been upending?
could you not have been upending?
could they not have been upending?