should straiten
Regular verb: straiten - straitened- straitened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should straiten
you should straiten
she should straiten
we should straiten
you should straiten
they should straiten 	I should be straitening
you should be straitening
she should be straitening
we should be straitening
you should be straitening
they should be straitening	I should have straitened
you should have straitened
she should have straitened
we should have straitened
you should have straitened
they should have straitened	I should have been straitening
you should have been straitening
she should have been straitening
we should have been straitening
you should have been straitening
they should have been straitening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not straiten
you should not straiten
she should not straiten
we should not straiten
you should not straiten
they should not straiten 	I should not be straitening
you should not be straitening
she should not be straitening
we should not be straitening
you should not be straitening
they should not be straitening	I should not have straitened
you should not have straitened
she should not have straitened
we should not have straitened
you should not have straitened
they should not have straitened	I should not have been straitening
you should not have been straitening
she should not have been straitening
we should not have been straitening
you should not have been straitening
they should not have been straitening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I straiten?
should you straiten?
should she straiten?
should we straiten?
should you straiten?
should they straiten? 	should I be straitening?
should you be straitening?
should she be straitening?
should we be straitening?
should you be straitening?
should they be straitening? 	should I have straitened?
should you have straitened?
should she have straitened?
should we have straitened?
should you have straitened?
should they have straitened? 	should I have been straitening?
should you have been straitening?
should she have been straitening?
should we have been straitening?
should you have been straitening?
should they have been straitening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not straiten?
should you not straiten?
should she not straiten?
should we not straiten?
should you not straiten?
should they not straiten? 	should I not be straitening?
should you not be straitening?
should she not be straitening?
should we not be straitening?
should you not be straitening?
should they not be straitening? 	should I not have straitened?
should you not have straitened?
should she not have straitened?
should we not have straitened?
should you not have straitened?
should they not have straitened? 	should I not have been straitening?
should you not have been straitening?
should she not have been straitening?
should we not have been straitening?
should you not have been straitening?
should they not have been straitening?