may shield
Regular verb: shield - shielded- shielded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may shield
you may shield
he may shield
we may shield
you may shield
they may shield 	I may be shielding
you may be shielding
he may be shielding
we may be shielding
you may be shielding
they may be shielding	I may have shielded
you may have shielded
he may have shielded
we may have shielded
you may have shielded
they may have shielded	I may have been shielding
you may have been shielding
he may have been shielding
we may have been shielding
you may have been shielding
they may have been shielding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't shield
you mayn't shield
he mayn't shield
we mayn't shield
you mayn't shield
they mayn't shield 	I mayn't be shielding
you mayn't be shielding
he mayn't be shielding
we mayn't be shielding
you mayn't be shielding
they mayn't be shielding	I mayn't have shielded
you mayn't have shielded
he mayn't have shielded
we mayn't have shielded
you mayn't have shielded
they mayn't have shielded	I mayn't have been shielding
you mayn't have been shielding
he mayn't have been shielding
we mayn't have been shielding
you mayn't have been shielding
they mayn't have been shielding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I shield?
may you shield?
may he shield?
may we shield?
may you shield?
may they shield? 	may I be shielding?
may you be shielding?
may he be shielding?
may we be shielding?
may you be shielding?
may they be shielding? 	may I have shielded?
may you have shielded?
may he have shielded?
may we have shielded?
may you have shielded?
may they have shielded? 	may I have been shielding?
may you have been shielding?
may he have been shielding?
may we have been shielding?
may you have been shielding?
may they have been shielding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I shield?
mayn't you shield?
mayn't he shield?
mayn't we shield?
mayn't you shield?
mayn't they shield? 	mayn't I be shielding?
mayn't you be shielding?
mayn't he be shielding?
mayn't we be shielding?
mayn't you be shielding?
mayn't they be shielding? 	mayn't I have shielded?
mayn't you have shielded?
mayn't he have shielded?
mayn't we have shielded?
mayn't you have shielded?
mayn't they have shielded? 	mayn't I have been shielding?
mayn't you have been shielding?
mayn't he have been shielding?
mayn't we have been shielding?
mayn't you have been shielding?
mayn't they have been shielding?