I may backflip you may backflip he may backflip we may backflip you may backflip they may backflip
V-ing form
I may be backfliping you may be backfliping he may be backfliping we may be backfliping you may be backfliping they may be backfliping
Perfect
I may have backfliped you may have backfliped he may have backfliped we may have backfliped you may have backfliped they may have backfliped
V-ing perfect
I may have been backfliping you may have been backfliping he may have been backfliping we may have been backfliping you may have been backfliping they may have been backfliping
Negation
Simple form
I mayn't backflip you mayn't backflip he mayn't backflip we mayn't backflip you mayn't backflip they mayn't backflip
V-ing form
I mayn't be backfliping you mayn't be backfliping he mayn't be backfliping we mayn't be backfliping you mayn't be backfliping they mayn't be backfliping
Perfect
I mayn't have backfliped you mayn't have backfliped he mayn't have backfliped we mayn't have backfliped you mayn't have backfliped they mayn't have backfliped
V-ing perfect
I mayn't have been backfliping you mayn't have been backfliping he mayn't have been backfliping we mayn't have been backfliping you mayn't have been backfliping they mayn't have been backfliping
Interrogative form
Simple form
may I backflip? may you backflip? may he backflip? may we backflip? may you backflip? may they backflip?
V-ing form
may I be backfliping? may you be backfliping? may he be backfliping? may we be backfliping? may you be backfliping? may they be backfliping?
Perfect
may I have backfliped? may you have backfliped? may he have backfliped? may we have backfliped? may you have backfliped? may they have backfliped?
V-ing perfect
may I have been backfliping? may you have been backfliping? may he have been backfliping? may we have been backfliping? may you have been backfliping? may they have been backfliping?
Interro-negative form
Simple form
mayn't I backflip? mayn't you backflip? mayn't he backflip? mayn't we backflip? mayn't you backflip? mayn't they backflip?
V-ing form
mayn't I be backfliping? mayn't you be backfliping? mayn't he be backfliping? mayn't we be backfliping? mayn't you be backfliping? mayn't they be backfliping?
Perfect
mayn't I have backfliped? mayn't you have backfliped? mayn't he have backfliped? mayn't we have backfliped? mayn't you have backfliped? mayn't they have backfliped?
V-ing perfect
mayn't I have been backfliping? mayn't you have been backfliping? mayn't he have been backfliping? mayn't we have been backfliping? mayn't you have been backfliping? mayn't they have been backfliping?