English verb conjugation
MAY REGRESS

Regular verb: regress - regressed - regressed

Affirmation

Simple form	V-ing form
I may regress you may regress he may regress we may regress you may regress they may regress	I may be regressing you may be regressing he 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 he 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 he 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 he 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 he 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 he 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 he 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 he regress? may we regress? may you regress? may they regress?	may I be regressing? may you be regressing? may he 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 he 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 he 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 he 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 he 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 he 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 he have been regressing? mayn't we have been regressing? mayn't you have been regressing? mayn't they have been regressing?