could stab
Verbo regolare: stab - stabbed- stabbed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could stab
you could stab
he could stab
we could stab
you could stab
they could stab 	I could be stabbing
you could be stabbing
he could be stabbing
we could be stabbing
you could be stabbing
they could be stabbing	I could have stabbed
you could have stabbed
he could have stabbed
we could have stabbed
you could have stabbed
they could have stabbed	I could have been stabbing
you could have been stabbing
he could have been stabbing
we could have been stabbing
you could have been stabbing
they could have been stabbing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not stab
you could not stab
he could not stab
we could not stab
you could not stab
they could not stab 	I could not be stabbing
you could not be stabbing
he could not be stabbing
we could not be stabbing
you could not be stabbing
they could not be stabbing	I could not have stabbed
you could not have stabbed
he could not have stabbed
we could not have stabbed
you could not have stabbed
they could not have stabbed	I could not have been stabbing
you could not have been stabbing
he could not have been stabbing
we could not have been stabbing
you could not have been stabbing
they could not have been stabbing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I stab?
could you stab?
could he stab?
could we stab?
could you stab?
could they stab? 	could I be stabbing?
could you be stabbing?
could he be stabbing?
could we be stabbing?
could you be stabbing?
could they be stabbing? 	could I have stabbed?
could you have stabbed?
could he have stabbed?
could we have stabbed?
could you have stabbed?
could they have stabbed? 	could I have been stabbing?
could you have been stabbing?
could he have been stabbing?
could we have been stabbing?
could you have been stabbing?
could they have been stabbing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not stab?
could you not stab?
could he not stab?
could we not stab?
could you not stab?
could they not stab? 	could I not be stabbing?
could you not be stabbing?
could he not be stabbing?
could we not be stabbing?
could you not be stabbing?
could they not be stabbing? 	could I not have stabbed?
could you not have stabbed?
could he not have stabbed?
could we not have stabbed?
could you not have stabbed?
could they not have stabbed? 	could I not have been stabbing?
could you not have been stabbing?
could he not have been stabbing?
could we not have been stabbing?
could you not have been stabbing?
could they not have been stabbing?