English verb conjugation
MAY BUTTRESS

Regular verb: buttress - buttressed - buttressed

Affirmation

Simple form	V-ing form
I may buttress you may buttress he may buttress we may buttress you may buttress they may buttress	I may be buttressing you may be buttressing he may be buttressing we may be buttressing you may be buttressing they may be buttressing
Perfect	V-ing perfect
I may have buttressed you may have buttressed he may have buttressed we may have buttressed you may have buttressed they may have buttressed	I may have been buttressing you may have been buttressing he may have been buttressing we may have been buttressing you may have been buttressing they may have been buttressing

Negation

Simple form	V-ing form
I mayn't buttress you mayn't buttress he mayn't buttress we mayn't buttress you mayn't buttress they mayn't buttress	I mayn't be buttressing you mayn't be buttressing he mayn't be buttressing we mayn't be buttressing you mayn't be buttressing they mayn't be buttressing
Perfect	V-ing perfect
I mayn't have buttressed you mayn't have buttressed he mayn't have buttressed we mayn't have buttressed you mayn't have buttressed they mayn't have buttressed	I mayn't have been buttressing you mayn't have been buttressing he mayn't have been buttressing we mayn't have been buttressing you mayn't have been buttressing they mayn't have been buttressing

Interrogative form

Simple form	V-ing form
may I buttress? may you buttress? may he buttress? may we buttress? may you buttress? may they buttress?	may I be buttressing? may you be buttressing? may he be buttressing? may we be buttressing? may you be buttressing? may they be buttressing?
Perfect	V-ing perfect
may I have buttressed? may you have buttressed? may he have buttressed? may we have buttressed? may you have buttressed? may they have buttressed?	may I have been buttressing? may you have been buttressing? may he have been buttressing? may we have been buttressing? may you have been buttressing? may they have been buttressing?

Interro-negative form

Simple form	V-ing form
mayn't I buttress? mayn't you buttress? mayn't he buttress? mayn't we buttress? mayn't you buttress? mayn't they buttress?	mayn't I be buttressing? mayn't you be buttressing? mayn't he be buttressing? mayn't we be buttressing? mayn't you be buttressing? mayn't they be buttressing?
Perfect	V-ing perfect
mayn't I have buttressed? mayn't you have buttressed? mayn't he have buttressed? mayn't we have buttressed? mayn't you have buttressed? mayn't they have buttressed?	mayn't I have been buttressing? mayn't you have been buttressing? mayn't he have been buttressing? mayn't we have been buttressing? mayn't you have been buttressing? mayn't they have been buttressing?