could tack
Verbo regolare: tack - tacked- tacked

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could tack
you could tack
he could tack
we could tack
you could tack
they could tack 	I could be tacking
you could be tacking
he could be tacking
we could be tacking
you could be tacking
they could be tacking	I could have tacked
you could have tacked
he could have tacked
we could have tacked
you could have tacked
they could have tacked	I could have been tacking
you could have been tacking
he could have been tacking
we could have been tacking
you could have been tacking
they could have been tacking	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not tack
you could not tack
he could not tack
we could not tack
you could not tack
they could not tack 	I could not be tacking
you could not be tacking
he could not be tacking
we could not be tacking
you could not be tacking
they could not be tacking	I could not have tacked
you could not have tacked
he could not have tacked
we could not have tacked
you could not have tacked
they could not have tacked	I could not have been tacking
you could not have been tacking
he could not have been tacking
we could not have been tacking
you could not have been tacking
they could not have been tacking	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I tack?
could you tack?
could he tack?
could we tack?
could you tack?
could they tack? 	could I be tacking?
could you be tacking?
could he be tacking?
could we be tacking?
could you be tacking?
could they be tacking? 	could I have tacked?
could you have tacked?
could he have tacked?
could we have tacked?
could you have tacked?
could they have tacked? 	could I have been tacking?
could you have been tacking?
could he have been tacking?
could we have been tacking?
could you have been tacking?
could they have been tacking? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not tack?
could you not tack?
could he not tack?
could we not tack?
could you not tack?
could they not tack? 	could I not be tacking?
could you not be tacking?
could he not be tacking?
could we not be tacking?
could you not be tacking?
could they not be tacking? 	could I not have tacked?
could you not have tacked?
could he not have tacked?
could we not have tacked?
could you not have tacked?
could they not have tacked? 	could I not have been tacking?
could you not have been tacking?
could he not have been tacking?
could we not have been tacking?
could you not have been tacking?
could they not have been tacking?