I may diagram you may diagram she may diagram we may diagram you may diagram they may diagram
V-ing form
I may be diagraming you may be diagraming she may be diagraming we may be diagraming you may be diagraming they may be diagraming
Perfect
I may have diagramed you may have diagramed she may have diagramed we may have diagramed you may have diagramed they may have diagramed
V-ing perfect
I may have been diagraming you may have been diagraming she may have been diagraming we may have been diagraming you may have been diagraming they may have been diagraming
Negation
Simple form
I mayn't diagram you mayn't diagram she mayn't diagram we mayn't diagram you mayn't diagram they mayn't diagram
V-ing form
I mayn't be diagraming you mayn't be diagraming she mayn't be diagraming we mayn't be diagraming you mayn't be diagraming they mayn't be diagraming
Perfect
I mayn't have diagramed you mayn't have diagramed she mayn't have diagramed we mayn't have diagramed you mayn't have diagramed they mayn't have diagramed
V-ing perfect
I mayn't have been diagraming you mayn't have been diagraming she mayn't have been diagraming we mayn't have been diagraming you mayn't have been diagraming they mayn't have been diagraming
Interrogative form
Simple form
may I diagram? may you diagram? may she diagram? may we diagram? may you diagram? may they diagram?
V-ing form
may I be diagraming? may you be diagraming? may she be diagraming? may we be diagraming? may you be diagraming? may they be diagraming?
Perfect
may I have diagramed? may you have diagramed? may she have diagramed? may we have diagramed? may you have diagramed? may they have diagramed?
V-ing perfect
may I have been diagraming? may you have been diagraming? may she have been diagraming? may we have been diagraming? may you have been diagraming? may they have been diagraming?
Interro-negative form
Simple form
mayn't I diagram? mayn't you diagram? mayn't she diagram? mayn't we diagram? mayn't you diagram? mayn't they diagram?
V-ing form
mayn't I be diagraming? mayn't you be diagraming? mayn't she be diagraming? mayn't we be diagraming? mayn't you be diagraming? mayn't they be diagraming?
Perfect
mayn't I have diagramed? mayn't you have diagramed? mayn't she have diagramed? mayn't we have diagramed? mayn't you have diagramed? mayn't they have diagramed?
V-ing perfect
mayn't I have been diagraming? mayn't you have been diagraming? mayn't she have been diagraming? mayn't we have been diagraming? mayn't you have been diagraming? mayn't they have been diagraming?