could knee
Verbo regular: knee - kneed- kneed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could knee
you could knee
she could knee
we could knee
you could knee
they could knee 	I could be kneeing
you could be kneeing
she could be kneeing
we could be kneeing
you could be kneeing
they could be kneeing	I could have kneed
you could have kneed
she could have kneed
we could have kneed
you could have kneed
they could have kneed	I could have been kneeing
you could have been kneeing
she could have been kneeing
we could have been kneeing
you could have been kneeing
they could have been kneeing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not knee
you could not knee
she could not knee
we could not knee
you could not knee
they could not knee 	I could not be kneeing
you could not be kneeing
she could not be kneeing
we could not be kneeing
you could not be kneeing
they could not be kneeing	I could not have kneed
you could not have kneed
she could not have kneed
we could not have kneed
you could not have kneed
they could not have kneed	I could not have been kneeing
you could not have been kneeing
she could not have been kneeing
we could not have been kneeing
you could not have been kneeing
they could not have been kneeing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I knee?
could you knee?
could she knee?
could we knee?
could you knee?
could they knee? 	could I be kneeing?
could you be kneeing?
could she be kneeing?
could we be kneeing?
could you be kneeing?
could they be kneeing? 	could I have kneed?
could you have kneed?
could she have kneed?
could we have kneed?
could you have kneed?
could they have kneed? 	could I have been kneeing?
could you have been kneeing?
could she have been kneeing?
could we have been kneeing?
could you have been kneeing?
could they have been kneeing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not knee?
could you not knee?
could she not knee?
could we not knee?
could you not knee?
could they not knee? 	could I not be kneeing?
could you not be kneeing?
could she not be kneeing?
could we not be kneeing?
could you not be kneeing?
could they not be kneeing? 	could I not have kneed?
could you not have kneed?
could she not have kneed?
could we not have kneed?
could you not have kneed?
could they not have kneed? 	could I not have been kneeing?
could you not have been kneeing?
could she not have been kneeing?
could we not have been kneeing?
could you not have been kneeing?
could they not have been kneeing?