English verb conjugation
MAY UNBUCKLE

Regular verb: unbuckle - unbuckled - unbuckled

Affirmation

Simple form	V-ing form
I may unbuckle you may unbuckle he may unbuckle we may unbuckle you may unbuckle they may unbuckle	I may be unbuckling you may be unbuckling he may be unbuckling we may be unbuckling you may be unbuckling they may be unbuckling
Perfect	V-ing perfect
I may have unbuckled you may have unbuckled he may have unbuckled we may have unbuckled you may have unbuckled they may have unbuckled	I may have been unbuckling you may have been unbuckling he may have been unbuckling we may have been unbuckling you may have been unbuckling they may have been unbuckling

Negation

Simple form	V-ing form
I mayn't unbuckle you mayn't unbuckle he mayn't unbuckle we mayn't unbuckle you mayn't unbuckle they mayn't unbuckle	I mayn't be unbuckling you mayn't be unbuckling he mayn't be unbuckling we mayn't be unbuckling you mayn't be unbuckling they mayn't be unbuckling
Perfect	V-ing perfect
I mayn't have unbuckled you mayn't have unbuckled he mayn't have unbuckled we mayn't have unbuckled you mayn't have unbuckled they mayn't have unbuckled	I mayn't have been unbuckling you mayn't have been unbuckling he mayn't have been unbuckling we mayn't have been unbuckling you mayn't have been unbuckling they mayn't have been unbuckling

Interrogative form

Simple form	V-ing form
may I unbuckle? may you unbuckle? may he unbuckle? may we unbuckle? may you unbuckle? may they unbuckle?	may I be unbuckling? may you be unbuckling? may he be unbuckling? may we be unbuckling? may you be unbuckling? may they be unbuckling?
Perfect	V-ing perfect
may I have unbuckled? may you have unbuckled? may he have unbuckled? may we have unbuckled? may you have unbuckled? may they have unbuckled?	may I have been unbuckling? may you have been unbuckling? may he have been unbuckling? may we have been unbuckling? may you have been unbuckling? may they have been unbuckling?

Interro-negative form

Simple form	V-ing form
mayn't I unbuckle? mayn't you unbuckle? mayn't he unbuckle? mayn't we unbuckle? mayn't you unbuckle? mayn't they unbuckle?	mayn't I be unbuckling? mayn't you be unbuckling? mayn't he be unbuckling? mayn't we be unbuckling? mayn't you be unbuckling? mayn't they be unbuckling?
Perfect	V-ing perfect
mayn't I have unbuckled? mayn't you have unbuckled? mayn't he have unbuckled? mayn't we have unbuckled? mayn't you have unbuckled? mayn't they have unbuckled?	mayn't I have been unbuckling? mayn't you have been unbuckling? mayn't he have been unbuckling? mayn't we have been unbuckling? mayn't you have been unbuckling? mayn't they have been unbuckling?