English verb conjugation
MAY PREEN

Regular verb: preen - preened - preened

Affirmation

Simple form	V-ing form
I may preen you may preen he may preen we may preen you may preen they may preen	I may be preening you may be preening he may be preening we may be preening you may be preening they may be preening
Perfect	V-ing perfect
I may have preened you may have preened he may have preened we may have preened you may have preened they may have preened	I may have been preening you may have been preening he may have been preening we may have been preening you may have been preening they may have been preening

Negation

Simple form	V-ing form
I mayn't preen you mayn't preen he mayn't preen we mayn't preen you mayn't preen they mayn't preen	I mayn't be preening you mayn't be preening he mayn't be preening we mayn't be preening you mayn't be preening they mayn't be preening
Perfect	V-ing perfect
I mayn't have preened you mayn't have preened he mayn't have preened we mayn't have preened you mayn't have preened they mayn't have preened	I mayn't have been preening you mayn't have been preening he mayn't have been preening we mayn't have been preening you mayn't have been preening they mayn't have been preening

Interrogative form

Simple form	V-ing form
may I preen? may you preen? may he preen? may we preen? may you preen? may they preen?	may I be preening? may you be preening? may he be preening? may we be preening? may you be preening? may they be preening?
Perfect	V-ing perfect
may I have preened? may you have preened? may he have preened? may we have preened? may you have preened? may they have preened?	may I have been preening? may you have been preening? may he have been preening? may we have been preening? may you have been preening? may they have been preening?

Interro-negative form

Simple form	V-ing form
mayn't I preen? mayn't you preen? mayn't he preen? mayn't we preen? mayn't you preen? mayn't they preen?	mayn't I be preening? mayn't you be preening? mayn't he be preening? mayn't we be preening? mayn't you be preening? mayn't they be preening?
Perfect	V-ing perfect
mayn't I have preened? mayn't you have preened? mayn't he have preened? mayn't we have preened? mayn't you have preened? mayn't they have preened?	mayn't I have been preening? mayn't you have been preening? mayn't he have been preening? mayn't we have been preening? mayn't you have been preening? mayn't they have been preening?