could zig
Verbo regular: zig - ziged- ziged

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could zig
you could zig
he could zig
we could zig
you could zig
they could zig 	I could be ziging
you could be ziging
he could be ziging
we could be ziging
you could be ziging
they could be ziging	I could have ziged
you could have ziged
he could have ziged
we could have ziged
you could have ziged
they could have ziged	I could have been ziging
you could have been ziging
he could have been ziging
we could have been ziging
you could have been ziging
they could have been ziging	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not zig
you could not zig
he could not zig
we could not zig
you could not zig
they could not zig 	I could not be ziging
you could not be ziging
he could not be ziging
we could not be ziging
you could not be ziging
they could not be ziging	I could not have ziged
you could not have ziged
he could not have ziged
we could not have ziged
you could not have ziged
they could not have ziged	I could not have been ziging
you could not have been ziging
he could not have been ziging
we could not have been ziging
you could not have been ziging
they could not have been ziging	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I zig?
could you zig?
could he zig?
could we zig?
could you zig?
could they zig? 	could I be ziging?
could you be ziging?
could he be ziging?
could we be ziging?
could you be ziging?
could they be ziging? 	could I have ziged?
could you have ziged?
could he have ziged?
could we have ziged?
could you have ziged?
could they have ziged? 	could I have been ziging?
could you have been ziging?
could he have been ziging?
could we have been ziging?
could you have been ziging?
could they have been ziging? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not zig?
could you not zig?
could he not zig?
could we not zig?
could you not zig?
could they not zig? 	could I not be ziging?
could you not be ziging?
could he not be ziging?
could we not be ziging?
could you not be ziging?
could they not be ziging? 	could I not have ziged?
could you not have ziged?
could he not have ziged?
could we not have ziged?
could you not have ziged?
could they not have ziged? 	could I not have been ziging?
could you not have been ziging?
could he not have been ziging?
could we not have been ziging?
could you not have been ziging?
could they not have been ziging?