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 may not buttress you may not buttress he may not buttress we may not buttress you may not buttress they may not buttress	I may not be buttressing you may not be buttressing he may not be buttressing we may not be buttressing you may not be buttressing they may not be buttressing
Perfect	V-ing perfect
I may not have buttressed you may not have buttressed he may not have buttressed we may not have buttressed you may not have buttressed they may not have buttressed	I may not have been buttressing you may not have been buttressing he may not have been buttressing we may not have been buttressing you may not have been buttressing they may not 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
may I not buttress? may you not buttress? may he not buttress? may we not buttress? may you not buttress? may they not buttress?	may I not be buttressing? may you not be buttressing? may he not be buttressing? may we not be buttressing? may you not be buttressing? may they not be buttressing?
Perfect	V-ing perfect
may I not have buttressed? may you not have buttressed? may he not have buttressed? may we not have buttressed? may you not have buttressed? may they not have buttressed?	may I not have been buttressing? may you not have been buttressing? may he not have been buttressing? may we not have been buttressing? may you not have been buttressing? may they not have been buttressing?