may undergird
Verbe irrégulier : undergird - undergirt, undergirded- undergirt, undergirded

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I may undergird
you may undergird
he may undergird
we may undergird
you may undergird
they may undergird 	I may be undergirding
you may be undergirding
he may be undergirding
we may be undergirding
you may be undergirding
they may be undergirding	I may have undergirt, undergirded
you may have undergirt, undergirded
he may have undergirt, undergirded
we may have undergirt, undergirded
you may have undergirt, undergirded
they may have undergirt, undergirded	I may have been undergirding
you may have been undergirding
he may have been undergirding
we may have been undergirding
you may have been undergirding
they may have been undergirding	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mayn't undergird
you mayn't undergird
he mayn't undergird
we mayn't undergird
you mayn't undergird
they mayn't undergird 	I mayn't be undergirding
you mayn't be undergirding
he mayn't be undergirding
we mayn't be undergirding
you mayn't be undergirding
they mayn't be undergirding	I mayn't have undergirt, undergirded
you mayn't have undergirt, undergirded
he mayn't have undergirt, undergirded
we mayn't have undergirt, undergirded
you mayn't have undergirt, undergirded
they mayn't have undergirt, undergirded	I mayn't have been undergirding
you mayn't have been undergirding
he mayn't have been undergirding
we mayn't have been undergirding
you mayn't have been undergirding
they mayn't have been undergirding	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
may I undergird?
may you undergird?
may he undergird?
may we undergird?
may you undergird?
may they undergird? 	may I be undergirding?
may you be undergirding?
may he be undergirding?
may we be undergirding?
may you be undergirding?
may they be undergirding? 	may I have undergirt, undergirded?
may you have undergirt, undergirded?
may he have undergirt, undergirded?
may we have undergirt, undergirded?
may you have undergirt, undergirded?
may they have undergirt, undergirded? 	may I have been undergirding?
may you have been undergirding?
may he have been undergirding?
may we have been undergirding?
may you have been undergirding?
may they have been undergirding? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mayn't I undergird?
mayn't you undergird?
mayn't he undergird?
mayn't we undergird?
mayn't you undergird?
mayn't they undergird? 	mayn't I be undergirding?
mayn't you be undergirding?
mayn't he be undergirding?
mayn't we be undergirding?
mayn't you be undergirding?
mayn't they be undergirding? 	mayn't I have undergirt, undergirded?
mayn't you have undergirt, undergirded?
mayn't he have undergirt, undergirded?
mayn't we have undergirt, undergirded?
mayn't you have undergirt, undergirded?
mayn't they have undergirt, undergirded? 	mayn't I have been undergirding?
mayn't you have been undergirding?
mayn't he have been undergirding?
mayn't we have been undergirding?
mayn't you have been undergirding?
mayn't they have been undergirding?