could straiten
Verbe régulier : straiten - straitened- straitened

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could straiten
you could straiten
she could straiten
we could straiten
you could straiten
they could straiten 	I could be straitening
you could be straitening
she could be straitening
we could be straitening
you could be straitening
they could be straitening	I could have straitened
you could have straitened
she 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
she could have been straitening
we could have been straitening
you could have been straitening
they could have been straitening	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't straiten
you couldn't straiten
she couldn't straiten
we couldn't straiten
you couldn't straiten
they couldn't straiten 	I couldn't be straitening
you couldn't be straitening
she couldn't be straitening
we couldn't be straitening
you couldn't be straitening
they couldn't be straitening	I couldn't have straitened
you couldn't have straitened
she couldn't have straitened
we couldn't have straitened
you couldn't have straitened
they couldn't have straitened	I couldn't have been straitening
you couldn't have been straitening
she couldn't have been straitening
we couldn't have been straitening
you couldn't have been straitening
they couldn't have been straitening	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I straiten?
could you straiten?
could she straiten?
could we straiten?
could you straiten?
could they straiten? 	could I be straitening?
could you be straitening?
could she be straitening?
could we be straitening?
could you be straitening?
could they be straitening? 	could I have straitened?
could you have straitened?
could she 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 she have been straitening?
could we have been straitening?
could you have been straitening?
could they have been straitening? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I straiten?
couldn't you straiten?
couldn't she straiten?
couldn't we straiten?
couldn't you straiten?
couldn't they straiten? 	couldn't I be straitening?
couldn't you be straitening?
couldn't she be straitening?
couldn't we be straitening?
couldn't you be straitening?
couldn't they be straitening? 	couldn't I have straitened?
couldn't you have straitened?
couldn't she have straitened?
couldn't we have straitened?
couldn't you have straitened?
couldn't they have straitened? 	couldn't I have been straitening?
couldn't you have been straitening?
couldn't she have been straitening?
couldn't we have been straitening?
couldn't you have been straitening?
couldn't they have been straitening?