could first-foot
Verbo regular: first-foot - first-footed- first-footed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could first-foot
you could first-foot
he could first-foot
we could first-foot
you could first-foot
they could first-foot 	I could be first-footing
you could be first-footing
he could be first-footing
we could be first-footing
you could be first-footing
they could be first-footing	I could have first-footed
you could have first-footed
he could have first-footed
we could have first-footed
you could have first-footed
they could have first-footed	I could have been first-footing
you could have been first-footing
he could have been first-footing
we could have been first-footing
you could have been first-footing
they could have been first-footing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not first-foot
you could not first-foot
he could not first-foot
we could not first-foot
you could not first-foot
they could not first-foot 	I could not be first-footing
you could not be first-footing
he could not be first-footing
we could not be first-footing
you could not be first-footing
they could not be first-footing	I could not have first-footed
you could not have first-footed
he could not have first-footed
we could not have first-footed
you could not have first-footed
they could not have first-footed	I could not have been first-footing
you could not have been first-footing
he could not have been first-footing
we could not have been first-footing
you could not have been first-footing
they could not have been first-footing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I first-foot?
could you first-foot?
could he first-foot?
could we first-foot?
could you first-foot?
could they first-foot? 	could I be first-footing?
could you be first-footing?
could he be first-footing?
could we be first-footing?
could you be first-footing?
could they be first-footing? 	could I have first-footed?
could you have first-footed?
could he have first-footed?
could we have first-footed?
could you have first-footed?
could they have first-footed? 	could I have been first-footing?
could you have been first-footing?
could he have been first-footing?
could we have been first-footing?
could you have been first-footing?
could they have been first-footing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not first-foot?
could you not first-foot?
could he not first-foot?
could we not first-foot?
could you not first-foot?
could they not first-foot? 	could I not be first-footing?
could you not be first-footing?
could he not be first-footing?
could we not be first-footing?
could you not be first-footing?
could they not be first-footing? 	could I not have first-footed?
could you not have first-footed?
could he not have first-footed?
could we not have first-footed?
could you not have first-footed?
could they not have first-footed? 	could I not have been first-footing?
could you not have been first-footing?
could he not have been first-footing?
could we not have been first-footing?
could you not have been first-footing?
could they not have been first-footing?