may discontinue
Regular verb: discontinue - discontinued- discontinued

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may discontinue
you may discontinue
he may discontinue
we may discontinue
you may discontinue
they may discontinue 	I may be discontinuing
you may be discontinuing
he may be discontinuing
we may be discontinuing
you may be discontinuing
they may be discontinuing	I may have discontinued
you may have discontinued
he may have discontinued
we may have discontinued
you may have discontinued
they may have discontinued	I may have been discontinuing
you may have been discontinuing
he may have been discontinuing
we may have been discontinuing
you may have been discontinuing
they may have been discontinuing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't discontinue
you mayn't discontinue
he mayn't discontinue
we mayn't discontinue
you mayn't discontinue
they mayn't discontinue 	I mayn't be discontinuing
you mayn't be discontinuing
he mayn't be discontinuing
we mayn't be discontinuing
you mayn't be discontinuing
they mayn't be discontinuing	I mayn't have discontinued
you mayn't have discontinued
he mayn't have discontinued
we mayn't have discontinued
you mayn't have discontinued
they mayn't have discontinued	I mayn't have been discontinuing
you mayn't have been discontinuing
he mayn't have been discontinuing
we mayn't have been discontinuing
you mayn't have been discontinuing
they mayn't have been discontinuing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I discontinue?
may you discontinue?
may he discontinue?
may we discontinue?
may you discontinue?
may they discontinue? 	may I be discontinuing?
may you be discontinuing?
may he be discontinuing?
may we be discontinuing?
may you be discontinuing?
may they be discontinuing? 	may I have discontinued?
may you have discontinued?
may he have discontinued?
may we have discontinued?
may you have discontinued?
may they have discontinued? 	may I have been discontinuing?
may you have been discontinuing?
may he have been discontinuing?
may we have been discontinuing?
may you have been discontinuing?
may they have been discontinuing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I discontinue?
mayn't you discontinue?
mayn't he discontinue?
mayn't we discontinue?
mayn't you discontinue?
mayn't they discontinue? 	mayn't I be discontinuing?
mayn't you be discontinuing?
mayn't he be discontinuing?
mayn't we be discontinuing?
mayn't you be discontinuing?
mayn't they be discontinuing? 	mayn't I have discontinued?
mayn't you have discontinued?
mayn't he have discontinued?
mayn't we have discontinued?
mayn't you have discontinued?
mayn't they have discontinued? 	mayn't I have been discontinuing?
mayn't you have been discontinuing?
mayn't he have been discontinuing?
mayn't we have been discontinuing?
mayn't you have been discontinuing?
mayn't they have been discontinuing?