may dump
Regular verb: dump - dumped- dumped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may dump
you may dump
she may dump
we may dump
you may dump
they may dump 	I may be dumping
you may be dumping
she may be dumping
we may be dumping
you may be dumping
they may be dumping	I may have dumped
you may have dumped
she may have dumped
we may have dumped
you may have dumped
they may have dumped	I may have been dumping
you may have been dumping
she may have been dumping
we may have been dumping
you may have been dumping
they may have been dumping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't dump
you mayn't dump
she mayn't dump
we mayn't dump
you mayn't dump
they mayn't dump 	I mayn't be dumping
you mayn't be dumping
she mayn't be dumping
we mayn't be dumping
you mayn't be dumping
they mayn't be dumping	I mayn't have dumped
you mayn't have dumped
she mayn't have dumped
we mayn't have dumped
you mayn't have dumped
they mayn't have dumped	I mayn't have been dumping
you mayn't have been dumping
she mayn't have been dumping
we mayn't have been dumping
you mayn't have been dumping
they mayn't have been dumping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I dump?
may you dump?
may she dump?
may we dump?
may you dump?
may they dump? 	may I be dumping?
may you be dumping?
may she be dumping?
may we be dumping?
may you be dumping?
may they be dumping? 	may I have dumped?
may you have dumped?
may she have dumped?
may we have dumped?
may you have dumped?
may they have dumped? 	may I have been dumping?
may you have been dumping?
may she have been dumping?
may we have been dumping?
may you have been dumping?
may they have been dumping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I dump?
mayn't you dump?
mayn't she dump?
mayn't we dump?
mayn't you dump?
mayn't they dump? 	mayn't I be dumping?
mayn't you be dumping?
mayn't she be dumping?
mayn't we be dumping?
mayn't you be dumping?
mayn't they be dumping? 	mayn't I have dumped?
mayn't you have dumped?
mayn't she have dumped?
mayn't we have dumped?
mayn't you have dumped?
mayn't they have dumped? 	mayn't I have been dumping?
mayn't you have been dumping?
mayn't she have been dumping?
mayn't we have been dumping?
mayn't you have been dumping?
mayn't they have been dumping?