English verb conjugation
MAY UNFASTEN

Regular verb: unfasten - unfastened - unfastened

Affirmation

Simple form	V-ing form
I may unfasten you may unfasten he may unfasten we may unfasten you may unfasten they may unfasten	I may be unfastening you may be unfastening he may be unfastening we may be unfastening you may be unfastening they may be unfastening
Perfect	V-ing perfect
I may have unfastened you may have unfastened he may have unfastened we may have unfastened you may have unfastened they may have unfastened	I may have been unfastening you may have been unfastening he may have been unfastening we may have been unfastening you may have been unfastening they may have been unfastening

Negation

Simple form	V-ing form
I mayn't unfasten you mayn't unfasten he mayn't unfasten we mayn't unfasten you mayn't unfasten they mayn't unfasten	I mayn't be unfastening you mayn't be unfastening he mayn't be unfastening we mayn't be unfastening you mayn't be unfastening they mayn't be unfastening
Perfect	V-ing perfect
I mayn't have unfastened you mayn't have unfastened he mayn't have unfastened we mayn't have unfastened you mayn't have unfastened they mayn't have unfastened	I mayn't have been unfastening you mayn't have been unfastening he mayn't have been unfastening we mayn't have been unfastening you mayn't have been unfastening they mayn't have been unfastening

Interrogative form

Simple form	V-ing form
may I unfasten? may you unfasten? may he unfasten? may we unfasten? may you unfasten? may they unfasten?	may I be unfastening? may you be unfastening? may he be unfastening? may we be unfastening? may you be unfastening? may they be unfastening?
Perfect	V-ing perfect
may I have unfastened? may you have unfastened? may he have unfastened? may we have unfastened? may you have unfastened? may they have unfastened?	may I have been unfastening? may you have been unfastening? may he have been unfastening? may we have been unfastening? may you have been unfastening? may they have been unfastening?

Interro-negative form

Simple form	V-ing form
mayn't I unfasten? mayn't you unfasten? mayn't he unfasten? mayn't we unfasten? mayn't you unfasten? mayn't they unfasten?	mayn't I be unfastening? mayn't you be unfastening? mayn't he be unfastening? mayn't we be unfastening? mayn't you be unfastening? mayn't they be unfastening?
Perfect	V-ing perfect
mayn't I have unfastened? mayn't you have unfastened? mayn't he have unfastened? mayn't we have unfastened? mayn't you have unfastened? mayn't they have unfastened?	mayn't I have been unfastening? mayn't you have been unfastening? mayn't he have been unfastening? mayn't we have been unfastening? mayn't you have been unfastening? mayn't they have been unfastening?