could picnic
Verbo regular: picnic - picniced- picniced

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could picnic
you could picnic
he could picnic
we could picnic
you could picnic
they could picnic 	I could be picnicing
you could be picnicing
he could be picnicing
we could be picnicing
you could be picnicing
they could be picnicing	I could have picniced
you could have picniced
he could have picniced
we could have picniced
you could have picniced
they could have picniced	I could have been picnicing
you could have been picnicing
he could have been picnicing
we could have been picnicing
you could have been picnicing
they could have been picnicing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not picnic
you could not picnic
he could not picnic
we could not picnic
you could not picnic
they could not picnic 	I could not be picnicing
you could not be picnicing
he could not be picnicing
we could not be picnicing
you could not be picnicing
they could not be picnicing	I could not have picniced
you could not have picniced
he could not have picniced
we could not have picniced
you could not have picniced
they could not have picniced	I could not have been picnicing
you could not have been picnicing
he could not have been picnicing
we could not have been picnicing
you could not have been picnicing
they could not have been picnicing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I picnic?
could you picnic?
could he picnic?
could we picnic?
could you picnic?
could they picnic? 	could I be picnicing?
could you be picnicing?
could he be picnicing?
could we be picnicing?
could you be picnicing?
could they be picnicing? 	could I have picniced?
could you have picniced?
could he have picniced?
could we have picniced?
could you have picniced?
could they have picniced? 	could I have been picnicing?
could you have been picnicing?
could he have been picnicing?
could we have been picnicing?
could you have been picnicing?
could they have been picnicing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not picnic?
could you not picnic?
could he not picnic?
could we not picnic?
could you not picnic?
could they not picnic? 	could I not be picnicing?
could you not be picnicing?
could he not be picnicing?
could we not be picnicing?
could you not be picnicing?
could they not be picnicing? 	could I not have picniced?
could you not have picniced?
could he not have picniced?
could we not have picniced?
could you not have picniced?
could they not have picniced? 	could I not have been picnicing?
could you not have been picnicing?
could he not have been picnicing?
could we not have been picnicing?
could you not have been picnicing?
could they not have been picnicing?