could summersault
Verbo regular: summersault - summersaulted- summersaulted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could summersault
you could summersault
he could summersault
we could summersault
you could summersault
they could summersault 	I could be summersaulting
you could be summersaulting
he could be summersaulting
we could be summersaulting
you could be summersaulting
they could be summersaulting	I could have summersaulted
you could have summersaulted
he could have summersaulted
we could have summersaulted
you could have summersaulted
they could have summersaulted	I could have been summersaulting
you could have been summersaulting
he could have been summersaulting
we could have been summersaulting
you could have been summersaulting
they could have been summersaulting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not summersault
you could not summersault
he could not summersault
we could not summersault
you could not summersault
they could not summersault 	I could not be summersaulting
you could not be summersaulting
he could not be summersaulting
we could not be summersaulting
you could not be summersaulting
they could not be summersaulting	I could not have summersaulted
you could not have summersaulted
he could not have summersaulted
we could not have summersaulted
you could not have summersaulted
they could not have summersaulted	I could not have been summersaulting
you could not have been summersaulting
he could not have been summersaulting
we could not have been summersaulting
you could not have been summersaulting
they could not have been summersaulting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I summersault?
could you summersault?
could he summersault?
could we summersault?
could you summersault?
could they summersault? 	could I be summersaulting?
could you be summersaulting?
could he be summersaulting?
could we be summersaulting?
could you be summersaulting?
could they be summersaulting? 	could I have summersaulted?
could you have summersaulted?
could he have summersaulted?
could we have summersaulted?
could you have summersaulted?
could they have summersaulted? 	could I have been summersaulting?
could you have been summersaulting?
could he have been summersaulting?
could we have been summersaulting?
could you have been summersaulting?
could they have been summersaulting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not summersault?
could you not summersault?
could he not summersault?
could we not summersault?
could you not summersault?
could they not summersault? 	could I not be summersaulting?
could you not be summersaulting?
could he not be summersaulting?
could we not be summersaulting?
could you not be summersaulting?
could they not be summersaulting? 	could I not have summersaulted?
could you not have summersaulted?
could he not have summersaulted?
could we not have summersaulted?
could you not have summersaulted?
could they not have summersaulted? 	could I not have been summersaulting?
could you not have been summersaulting?
could he not have been summersaulting?
could we not have been summersaulting?
could you not have been summersaulting?
could they not have been summersaulting?