could straiten
Verbo regolare: straiten - straitened- straitened

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could straiten
you could straiten
he could straiten
we could straiten
you could straiten
they could straiten 	I could be straitening
you could be straitening
he could be straitening
we could be straitening
you could be straitening
they could be straitening	I could have straitened
you could have straitened
he could have straitened
we could have straitened
you could have straitened
they could have straitened	I could have been straitening
you could have been straitening
he could have been straitening
we could have been straitening
you could have been straitening
they could have been straitening	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not straiten
you could not straiten
he could not straiten
we could not straiten
you could not straiten
they could not straiten 	I could not be straitening
you could not be straitening
he could not be straitening
we could not be straitening
you could not be straitening
they could not be straitening	I could not have straitened
you could not have straitened
he could not have straitened
we could not have straitened
you could not have straitened
they could not have straitened	I could not have been straitening
you could not have been straitening
he could not have been straitening
we could not have been straitening
you could not have been straitening
they could not have been straitening	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I straiten?
could you straiten?
could he straiten?
could we straiten?
could you straiten?
could they straiten? 	could I be straitening?
could you be straitening?
could he be straitening?
could we be straitening?
could you be straitening?
could they be straitening? 	could I have straitened?
could you have straitened?
could he have straitened?
could we have straitened?
could you have straitened?
could they have straitened? 	could I have been straitening?
could you have been straitening?
could he have been straitening?
could we have been straitening?
could you have been straitening?
could they have been straitening? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not straiten?
could you not straiten?
could he not straiten?
could we not straiten?
could you not straiten?
could they not straiten? 	could I not be straitening?
could you not be straitening?
could he not be straitening?
could we not be straitening?
could you not be straitening?
could they not be straitening? 	could I not have straitened?
could you not have straitened?
could he not have straitened?
could we not have straitened?
could you not have straitened?
could they not have straitened? 	could I not have been straitening?
could you not have been straitening?
could he not have been straitening?
could we not have been straitening?
could you not have been straitening?
could they not have been straitening?