could somersault
Verbo regular: somersault - somersaulted- somersaulted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could somersault
you could somersault
he could somersault
we could somersault
you could somersault
they could somersault 	I could be somersaulting
you could be somersaulting
he could be somersaulting
we could be somersaulting
you could be somersaulting
they could be somersaulting	I could have somersaulted
you could have somersaulted
he could have somersaulted
we could have somersaulted
you could have somersaulted
they could have somersaulted	I could have been somersaulting
you could have been somersaulting
he could have been somersaulting
we could have been somersaulting
you could have been somersaulting
they could have been somersaulting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not somersault
you could not somersault
he could not somersault
we could not somersault
you could not somersault
they could not somersault 	I could not be somersaulting
you could not be somersaulting
he could not be somersaulting
we could not be somersaulting
you could not be somersaulting
they could not be somersaulting	I could not have somersaulted
you could not have somersaulted
he could not have somersaulted
we could not have somersaulted
you could not have somersaulted
they could not have somersaulted	I could not have been somersaulting
you could not have been somersaulting
he could not have been somersaulting
we could not have been somersaulting
you could not have been somersaulting
they could not have been somersaulting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I somersault?
could you somersault?
could he somersault?
could we somersault?
could you somersault?
could they somersault? 	could I be somersaulting?
could you be somersaulting?
could he be somersaulting?
could we be somersaulting?
could you be somersaulting?
could they be somersaulting? 	could I have somersaulted?
could you have somersaulted?
could he have somersaulted?
could we have somersaulted?
could you have somersaulted?
could they have somersaulted? 	could I have been somersaulting?
could you have been somersaulting?
could he have been somersaulting?
could we have been somersaulting?
could you have been somersaulting?
could they have been somersaulting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not somersault?
could you not somersault?
could he not somersault?
could we not somersault?
could you not somersault?
could they not somersault? 	could I not be somersaulting?
could you not be somersaulting?
could he not be somersaulting?
could we not be somersaulting?
could you not be somersaulting?
could they not be somersaulting? 	could I not have somersaulted?
could you not have somersaulted?
could he not have somersaulted?
could we not have somersaulted?
could you not have somersaulted?
could they not have somersaulted? 	could I not have been somersaulting?
could you not have been somersaulting?
could he not have been somersaulting?
could we not have been somersaulting?
could you not have been somersaulting?
could they not have been somersaulting?