English verb conjugation
MAY REGRESS

Regular verb: regress - regressed - regressed

Affirmation

Simple form	V-ing form
I may regress you may regress she may regress we may regress you may regress they may regress	I may be regressing you may be regressing she may be regressing we may be regressing you may be regressing they may be regressing
Perfect	V-ing perfect
I may have regressed you may have regressed she may have regressed we may have regressed you may have regressed they may have regressed	I may have been regressing you may have been regressing she may have been regressing we may have been regressing you may have been regressing they may have been regressing

Negation

Simple form	V-ing form
I mayn't regress you mayn't regress she mayn't regress we mayn't regress you mayn't regress they mayn't regress	I mayn't be regressing you mayn't be regressing she mayn't be regressing we mayn't be regressing you mayn't be regressing they mayn't be regressing
Perfect	V-ing perfect
I mayn't have regressed you mayn't have regressed she mayn't have regressed we mayn't have regressed you mayn't have regressed they mayn't have regressed	I mayn't have been regressing you mayn't have been regressing she mayn't have been regressing we mayn't have been regressing you mayn't have been regressing they mayn't have been regressing

Interrogative form

Simple form	V-ing form
may I regress? may you regress? may she regress? may we regress? may you regress? may they regress?	may I be regressing? may you be regressing? may she be regressing? may we be regressing? may you be regressing? may they be regressing?
Perfect	V-ing perfect
may I have regressed? may you have regressed? may she have regressed? may we have regressed? may you have regressed? may they have regressed?	may I have been regressing? may you have been regressing? may she have been regressing? may we have been regressing? may you have been regressing? may they have been regressing?

Interro-negative form

Simple form	V-ing form
mayn't I regress? mayn't you regress? mayn't she regress? mayn't we regress? mayn't you regress? mayn't they regress?	mayn't I be regressing? mayn't you be regressing? mayn't she be regressing? mayn't we be regressing? mayn't you be regressing? mayn't they be regressing?
Perfect	V-ing perfect
mayn't I have regressed? mayn't you have regressed? mayn't she have regressed? mayn't we have regressed? mayn't you have regressed? mayn't they have regressed?	mayn't I have been regressing? mayn't you have been regressing? mayn't she have been regressing? mayn't we have been regressing? mayn't you have been regressing? mayn't they have been regressing?