may straiten
Regular verb: straiten - straitened- straitened

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

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

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

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