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