may boil
Regular verb: boil - boiled- boiled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may boil
you may boil
he may boil
we may boil
you may boil
they may boil 	I may be boiling
you may be boiling
he may be boiling
we may be boiling
you may be boiling
they may be boiling	I may have boiled
you may have boiled
he may have boiled
we may have boiled
you may have boiled
they may have boiled	I may have been boiling
you may have been boiling
he may have been boiling
we may have been boiling
you may have been boiling
they may have been boiling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't boil
you mayn't boil
he mayn't boil
we mayn't boil
you mayn't boil
they mayn't boil 	I mayn't be boiling
you mayn't be boiling
he mayn't be boiling
we mayn't be boiling
you mayn't be boiling
they mayn't be boiling	I mayn't have boiled
you mayn't have boiled
he mayn't have boiled
we mayn't have boiled
you mayn't have boiled
they mayn't have boiled	I mayn't have been boiling
you mayn't have been boiling
he mayn't have been boiling
we mayn't have been boiling
you mayn't have been boiling
they mayn't have been boiling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I boil?
may you boil?
may he boil?
may we boil?
may you boil?
may they boil? 	may I be boiling?
may you be boiling?
may he be boiling?
may we be boiling?
may you be boiling?
may they be boiling? 	may I have boiled?
may you have boiled?
may he have boiled?
may we have boiled?
may you have boiled?
may they have boiled? 	may I have been boiling?
may you have been boiling?
may he have been boiling?
may we have been boiling?
may you have been boiling?
may they have been boiling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I boil?
mayn't you boil?
mayn't he boil?
mayn't we boil?
mayn't you boil?
mayn't they boil? 	mayn't I be boiling?
mayn't you be boiling?
mayn't he be boiling?
mayn't we be boiling?
mayn't you be boiling?
mayn't they be boiling? 	mayn't I have boiled?
mayn't you have boiled?
mayn't he have boiled?
mayn't we have boiled?
mayn't you have boiled?
mayn't they have boiled? 	mayn't I have been boiling?
mayn't you have been boiling?
mayn't he have been boiling?
mayn't we have been boiling?
mayn't you have been boiling?
mayn't they have been boiling?