English verb conjugation
MAY LEAVEN

Regular verb: leaven - leavened - leavened

Affirmation

Simple form	V-ing form
I may leaven you may leaven he may leaven we may leaven you may leaven they may leaven	I may be leavening you may be leavening he may be leavening we may be leavening you may be leavening they may be leavening
Perfect	V-ing perfect
I may have leavened you may have leavened he may have leavened we may have leavened you may have leavened they may have leavened	I may have been leavening you may have been leavening he may have been leavening we may have been leavening you may have been leavening they may have been leavening

Negation

Simple form	V-ing form
I mayn't leaven you mayn't leaven he mayn't leaven we mayn't leaven you mayn't leaven they mayn't leaven	I mayn't be leavening you mayn't be leavening he mayn't be leavening we mayn't be leavening you mayn't be leavening they mayn't be leavening
Perfect	V-ing perfect
I mayn't have leavened you mayn't have leavened he mayn't have leavened we mayn't have leavened you mayn't have leavened they mayn't have leavened	I mayn't have been leavening you mayn't have been leavening he mayn't have been leavening we mayn't have been leavening you mayn't have been leavening they mayn't have been leavening

Interrogative form

Simple form	V-ing form
may I leaven? may you leaven? may he leaven? may we leaven? may you leaven? may they leaven?	may I be leavening? may you be leavening? may he be leavening? may we be leavening? may you be leavening? may they be leavening?
Perfect	V-ing perfect
may I have leavened? may you have leavened? may he have leavened? may we have leavened? may you have leavened? may they have leavened?	may I have been leavening? may you have been leavening? may he have been leavening? may we have been leavening? may you have been leavening? may they have been leavening?

Interro-negative form

Simple form	V-ing form
mayn't I leaven? mayn't you leaven? mayn't he leaven? mayn't we leaven? mayn't you leaven? mayn't they leaven?	mayn't I be leavening? mayn't you be leavening? mayn't he be leavening? mayn't we be leavening? mayn't you be leavening? mayn't they be leavening?
Perfect	V-ing perfect
mayn't I have leavened? mayn't you have leavened? mayn't he have leavened? mayn't we have leavened? mayn't you have leavened? mayn't they have leavened?	mayn't I have been leavening? mayn't you have been leavening? mayn't he have been leavening? mayn't we have been leavening? mayn't you have been leavening? mayn't they have been leavening?