may lengthen
Verbo regular: lengthen - lengthened- lengthened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may lengthen
you may lengthen
she may lengthen
we may lengthen
you may lengthen
they may lengthen 	I may be lengthening
you may be lengthening
she may be lengthening
we may be lengthening
you may be lengthening
they may be lengthening	I may have lengthened
you may have lengthened
she may have lengthened
we may have lengthened
you may have lengthened
they may have lengthened	I may have been lengthening
you may have been lengthening
she may have been lengthening
we may have been lengthening
you may have been lengthening
they may have been lengthening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mayn't lengthen
you mayn't lengthen
she mayn't lengthen
we mayn't lengthen
you mayn't lengthen
they mayn't lengthen 	I mayn't be lengthening
you mayn't be lengthening
she mayn't be lengthening
we mayn't be lengthening
you mayn't be lengthening
they mayn't be lengthening	I mayn't have lengthened
you mayn't have lengthened
she mayn't have lengthened
we mayn't have lengthened
you mayn't have lengthened
they mayn't have lengthened	I mayn't have been lengthening
you mayn't have been lengthening
she mayn't have been lengthening
we mayn't have been lengthening
you mayn't have been lengthening
they mayn't have been lengthening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I lengthen?
may you lengthen?
may she lengthen?
may we lengthen?
may you lengthen?
may they lengthen? 	may I be lengthening?
may you be lengthening?
may she be lengthening?
may we be lengthening?
may you be lengthening?
may they be lengthening? 	may I have lengthened?
may you have lengthened?
may she have lengthened?
may we have lengthened?
may you have lengthened?
may they have lengthened? 	may I have been lengthening?
may you have been lengthening?
may she have been lengthening?
may we have been lengthening?
may you have been lengthening?
may they have been lengthening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mayn't I lengthen?
mayn't you lengthen?
mayn't she lengthen?
mayn't we lengthen?
mayn't you lengthen?
mayn't they lengthen? 	mayn't I be lengthening?
mayn't you be lengthening?
mayn't she be lengthening?
mayn't we be lengthening?
mayn't you be lengthening?
mayn't they be lengthening? 	mayn't I have lengthened?
mayn't you have lengthened?
mayn't she have lengthened?
mayn't we have lengthened?
mayn't you have lengthened?
mayn't they have lengthened? 	mayn't I have been lengthening?
mayn't you have been lengthening?
mayn't she have been lengthening?
mayn't we have been lengthening?
mayn't you have been lengthening?
mayn't they have been lengthening?