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