could skeletonise
Verbo regular: skeletonise - skeletonised- skeletonised

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could skeletonise
you could skeletonise
he could skeletonise
we could skeletonise
you could skeletonise
they could skeletonise 	I could be skeletonising
you could be skeletonising
he could be skeletonising
we could be skeletonising
you could be skeletonising
they could be skeletonising	I could have skeletonised
you could have skeletonised
he could have skeletonised
we could have skeletonised
you could have skeletonised
they could have skeletonised	I could have been skeletonising
you could have been skeletonising
he could have been skeletonising
we could have been skeletonising
you could have been skeletonising
they could have been skeletonising	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't skeletonise
you couldn't skeletonise
he couldn't skeletonise
we couldn't skeletonise
you couldn't skeletonise
they couldn't skeletonise 	I couldn't be skeletonising
you couldn't be skeletonising
he couldn't be skeletonising
we couldn't be skeletonising
you couldn't be skeletonising
they couldn't be skeletonising	I couldn't have skeletonised
you couldn't have skeletonised
he couldn't have skeletonised
we couldn't have skeletonised
you couldn't have skeletonised
they couldn't have skeletonised	I couldn't have been skeletonising
you couldn't have been skeletonising
he couldn't have been skeletonising
we couldn't have been skeletonising
you couldn't have been skeletonising
they couldn't have been skeletonising	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I skeletonise?
could you skeletonise?
could he skeletonise?
could we skeletonise?
could you skeletonise?
could they skeletonise? 	could I be skeletonising?
could you be skeletonising?
could he be skeletonising?
could we be skeletonising?
could you be skeletonising?
could they be skeletonising? 	could I have skeletonised?
could you have skeletonised?
could he have skeletonised?
could we have skeletonised?
could you have skeletonised?
could they have skeletonised? 	could I have been skeletonising?
could you have been skeletonising?
could he have been skeletonising?
could we have been skeletonising?
could you have been skeletonising?
could they have been skeletonising? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I skeletonise?
couldn't you skeletonise?
couldn't he skeletonise?
couldn't we skeletonise?
couldn't you skeletonise?
couldn't they skeletonise? 	couldn't I be skeletonising?
couldn't you be skeletonising?
couldn't he be skeletonising?
couldn't we be skeletonising?
couldn't you be skeletonising?
couldn't they be skeletonising? 	couldn't I have skeletonised?
couldn't you have skeletonised?
couldn't he have skeletonised?
couldn't we have skeletonised?
couldn't you have skeletonised?
couldn't they have skeletonised? 	couldn't I have been skeletonising?
couldn't you have been skeletonising?
couldn't he have been skeletonising?
couldn't we have been skeletonising?
couldn't you have been skeletonising?
couldn't they have been skeletonising?