may chum
Regular verb: chum - chummed- chummed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may chum
you may chum
he may chum
we may chum
you may chum
they may chum 	I may be chumming
you may be chumming
he may be chumming
we may be chumming
you may be chumming
they may be chumming	I may have chummed
you may have chummed
he may have chummed
we may have chummed
you may have chummed
they may have chummed	I may have been chumming
you may have been chumming
he may have been chumming
we may have been chumming
you may have been chumming
they may have been chumming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't chum
you mayn't chum
he mayn't chum
we mayn't chum
you mayn't chum
they mayn't chum 	I mayn't be chumming
you mayn't be chumming
he mayn't be chumming
we mayn't be chumming
you mayn't be chumming
they mayn't be chumming	I mayn't have chummed
you mayn't have chummed
he mayn't have chummed
we mayn't have chummed
you mayn't have chummed
they mayn't have chummed	I mayn't have been chumming
you mayn't have been chumming
he mayn't have been chumming
we mayn't have been chumming
you mayn't have been chumming
they mayn't have been chumming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I chum?
may you chum?
may he chum?
may we chum?
may you chum?
may they chum? 	may I be chumming?
may you be chumming?
may he be chumming?
may we be chumming?
may you be chumming?
may they be chumming? 	may I have chummed?
may you have chummed?
may he have chummed?
may we have chummed?
may you have chummed?
may they have chummed? 	may I have been chumming?
may you have been chumming?
may he have been chumming?
may we have been chumming?
may you have been chumming?
may they have been chumming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I chum?
mayn't you chum?
mayn't he chum?
mayn't we chum?
mayn't you chum?
mayn't they chum? 	mayn't I be chumming?
mayn't you be chumming?
mayn't he be chumming?
mayn't we be chumming?
mayn't you be chumming?
mayn't they be chumming? 	mayn't I have chummed?
mayn't you have chummed?
mayn't he have chummed?
mayn't we have chummed?
mayn't you have chummed?
mayn't they have chummed? 	mayn't I have been chumming?
mayn't you have been chumming?
mayn't he have been chumming?
mayn't we have been chumming?
mayn't you have been chumming?
mayn't they have been chumming?