may constrict
Regular verb: constrict - constricted- constricted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may constrict
you may constrict
he may constrict
we may constrict
you may constrict
they may constrict 	I may be constricting
you may be constricting
he may be constricting
we may be constricting
you may be constricting
they may be constricting	I may have constricted
you may have constricted
he may have constricted
we may have constricted
you may have constricted
they may have constricted	I may have been constricting
you may have been constricting
he may have been constricting
we may have been constricting
you may have been constricting
they may have been constricting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't constrict
you mayn't constrict
he mayn't constrict
we mayn't constrict
you mayn't constrict
they mayn't constrict 	I mayn't be constricting
you mayn't be constricting
he mayn't be constricting
we mayn't be constricting
you mayn't be constricting
they mayn't be constricting	I mayn't have constricted
you mayn't have constricted
he mayn't have constricted
we mayn't have constricted
you mayn't have constricted
they mayn't have constricted	I mayn't have been constricting
you mayn't have been constricting
he mayn't have been constricting
we mayn't have been constricting
you mayn't have been constricting
they mayn't have been constricting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I constrict?
may you constrict?
may he constrict?
may we constrict?
may you constrict?
may they constrict? 	may I be constricting?
may you be constricting?
may he be constricting?
may we be constricting?
may you be constricting?
may they be constricting? 	may I have constricted?
may you have constricted?
may he have constricted?
may we have constricted?
may you have constricted?
may they have constricted? 	may I have been constricting?
may you have been constricting?
may he have been constricting?
may we have been constricting?
may you have been constricting?
may they have been constricting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I constrict?
mayn't you constrict?
mayn't he constrict?
mayn't we constrict?
mayn't you constrict?
mayn't they constrict? 	mayn't I be constricting?
mayn't you be constricting?
mayn't he be constricting?
mayn't we be constricting?
mayn't you be constricting?
mayn't they be constricting? 	mayn't I have constricted?
mayn't you have constricted?
mayn't he have constricted?
mayn't we have constricted?
mayn't you have constricted?
mayn't they have constricted? 	mayn't I have been constricting?
mayn't you have been constricting?
mayn't he have been constricting?
mayn't we have been constricting?
mayn't you have been constricting?
mayn't they have been constricting?