could skew
Verbo regular: skew - skewed- skewed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could skew
you could skew
he could skew
we could skew
you could skew
they could skew 	I could be skewing
you could be skewing
he could be skewing
we could be skewing
you could be skewing
they could be skewing	I could have skewed
you could have skewed
he could have skewed
we could have skewed
you could have skewed
they could have skewed	I could have been skewing
you could have been skewing
he could have been skewing
we could have been skewing
you could have been skewing
they could have been skewing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't skew
you couldn't skew
he couldn't skew
we couldn't skew
you couldn't skew
they couldn't skew 	I couldn't be skewing
you couldn't be skewing
he couldn't be skewing
we couldn't be skewing
you couldn't be skewing
they couldn't be skewing	I couldn't have skewed
you couldn't have skewed
he couldn't have skewed
we couldn't have skewed
you couldn't have skewed
they couldn't have skewed	I couldn't have been skewing
you couldn't have been skewing
he couldn't have been skewing
we couldn't have been skewing
you couldn't have been skewing
they couldn't have been skewing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I skew?
could you skew?
could he skew?
could we skew?
could you skew?
could they skew? 	could I be skewing?
could you be skewing?
could he be skewing?
could we be skewing?
could you be skewing?
could they be skewing? 	could I have skewed?
could you have skewed?
could he have skewed?
could we have skewed?
could you have skewed?
could they have skewed? 	could I have been skewing?
could you have been skewing?
could he have been skewing?
could we have been skewing?
could you have been skewing?
could they have been skewing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I skew?
couldn't you skew?
couldn't he skew?
couldn't we skew?
couldn't you skew?
couldn't they skew? 	couldn't I be skewing?
couldn't you be skewing?
couldn't he be skewing?
couldn't we be skewing?
couldn't you be skewing?
couldn't they be skewing? 	couldn't I have skewed?
couldn't you have skewed?
couldn't he have skewed?
couldn't we have skewed?
couldn't you have skewed?
couldn't they have skewed? 	couldn't I have been skewing?
couldn't you have been skewing?
couldn't he have been skewing?
couldn't we have been skewing?
couldn't you have been skewing?
couldn't they have been skewing?