may retighten
Verbo regular: retighten - retightened- retightened

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may retighten
you may retighten
he may retighten
we may retighten
you may retighten
they may retighten 	I may be retightening
you may be retightening
he may be retightening
we may be retightening
you may be retightening
they may be retightening	I may have retightened
you may have retightened
he may have retightened
we may have retightened
you may have retightened
they may have retightened	I may have been retightening
you may have been retightening
he may have been retightening
we may have been retightening
you may have been retightening
they may have been retightening	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mayn't retighten
you mayn't retighten
he mayn't retighten
we mayn't retighten
you mayn't retighten
they mayn't retighten 	I mayn't be retightening
you mayn't be retightening
he mayn't be retightening
we mayn't be retightening
you mayn't be retightening
they mayn't be retightening	I mayn't have retightened
you mayn't have retightened
he mayn't have retightened
we mayn't have retightened
you mayn't have retightened
they mayn't have retightened	I mayn't have been retightening
you mayn't have been retightening
he mayn't have been retightening
we mayn't have been retightening
you mayn't have been retightening
they mayn't have been retightening	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I retighten?
may you retighten?
may he retighten?
may we retighten?
may you retighten?
may they retighten? 	may I be retightening?
may you be retightening?
may he be retightening?
may we be retightening?
may you be retightening?
may they be retightening? 	may I have retightened?
may you have retightened?
may he have retightened?
may we have retightened?
may you have retightened?
may they have retightened? 	may I have been retightening?
may you have been retightening?
may he have been retightening?
may we have been retightening?
may you have been retightening?
may they have been retightening? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mayn't I retighten?
mayn't you retighten?
mayn't he retighten?
mayn't we retighten?
mayn't you retighten?
mayn't they retighten? 	mayn't I be retightening?
mayn't you be retightening?
mayn't he be retightening?
mayn't we be retightening?
mayn't you be retightening?
mayn't they be retightening? 	mayn't I have retightened?
mayn't you have retightened?
mayn't he have retightened?
mayn't we have retightened?
mayn't you have retightened?
mayn't they have retightened? 	mayn't I have been retightening?
mayn't you have been retightening?
mayn't he have been retightening?
mayn't we have been retightening?
mayn't you have been retightening?
mayn't they have been retightening?