English verb conjugation
MAY CENTER

Regular verb: center - centered - centered

Affirmation

Simple form	V-ing form
I may center you may center he may center we may center you may center they may center	I may be centering you may be centering he may be centering we may be centering you may be centering they may be centering
Perfect	V-ing perfect
I may have centered you may have centered he may have centered we may have centered you may have centered they may have centered	I may have been centering you may have been centering he may have been centering we may have been centering you may have been centering they may have been centering

Negation

Simple form	V-ing form
I mayn't center you mayn't center he mayn't center we mayn't center you mayn't center they mayn't center	I mayn't be centering you mayn't be centering he mayn't be centering we mayn't be centering you mayn't be centering they mayn't be centering
Perfect	V-ing perfect
I mayn't have centered you mayn't have centered he mayn't have centered we mayn't have centered you mayn't have centered they mayn't have centered	I mayn't have been centering you mayn't have been centering he mayn't have been centering we mayn't have been centering you mayn't have been centering they mayn't have been centering

Interrogative form

Simple form	V-ing form
may I center? may you center? may he center? may we center? may you center? may they center?	may I be centering? may you be centering? may he be centering? may we be centering? may you be centering? may they be centering?
Perfect	V-ing perfect
may I have centered? may you have centered? may he have centered? may we have centered? may you have centered? may they have centered?	may I have been centering? may you have been centering? may he have been centering? may we have been centering? may you have been centering? may they have been centering?

Interro-negative form

Simple form	V-ing form
mayn't I center? mayn't you center? mayn't he center? mayn't we center? mayn't you center? mayn't they center?	mayn't I be centering? mayn't you be centering? mayn't he be centering? mayn't we be centering? mayn't you be centering? mayn't they be centering?
Perfect	V-ing perfect
mayn't I have centered? mayn't you have centered? mayn't he have centered? mayn't we have centered? mayn't you have centered? mayn't they have centered?	mayn't I have been centering? mayn't you have been centering? mayn't he have been centering? mayn't we have been centering? mayn't you have been centering? mayn't they have been centering?