I may gladden you may gladden he may gladden we may gladden you may gladden they may gladden
V-ing form
I may be gladdening you may be gladdening he may be gladdening we may be gladdening you may be gladdening they may be gladdening
Perfect
I may have gladdened you may have gladdened he may have gladdened we may have gladdened you may have gladdened they may have gladdened
V-ing perfect
I may have been gladdening you may have been gladdening he may have been gladdening we may have been gladdening you may have been gladdening they may have been gladdening
Negation
Simple form
I mayn't gladden you mayn't gladden he mayn't gladden we mayn't gladden you mayn't gladden they mayn't gladden
V-ing form
I mayn't be gladdening you mayn't be gladdening he mayn't be gladdening we mayn't be gladdening you mayn't be gladdening they mayn't be gladdening
Perfect
I mayn't have gladdened you mayn't have gladdened he mayn't have gladdened we mayn't have gladdened you mayn't have gladdened they mayn't have gladdened
V-ing perfect
I mayn't have been gladdening you mayn't have been gladdening he mayn't have been gladdening we mayn't have been gladdening you mayn't have been gladdening they mayn't have been gladdening
Interrogative form
Simple form
may I gladden? may you gladden? may he gladden? may we gladden? may you gladden? may they gladden?
V-ing form
may I be gladdening? may you be gladdening? may he be gladdening? may we be gladdening? may you be gladdening? may they be gladdening?
Perfect
may I have gladdened? may you have gladdened? may he have gladdened? may we have gladdened? may you have gladdened? may they have gladdened?
V-ing perfect
may I have been gladdening? may you have been gladdening? may he have been gladdening? may we have been gladdening? may you have been gladdening? may they have been gladdening?
Interro-negative form
Simple form
mayn't I gladden? mayn't you gladden? mayn't he gladden? mayn't we gladden? mayn't you gladden? mayn't they gladden?
V-ing form
mayn't I be gladdening? mayn't you be gladdening? mayn't he be gladdening? mayn't we be gladdening? mayn't you be gladdening? mayn't they be gladdening?
Perfect
mayn't I have gladdened? mayn't you have gladdened? mayn't he have gladdened? mayn't we have gladdened? mayn't you have gladdened? mayn't they have gladdened?
V-ing perfect
mayn't I have been gladdening? mayn't you have been gladdening? mayn't he have been gladdening? mayn't we have been gladdening? mayn't you have been gladdening? mayn't they have been gladdening?