English verb conjugation
MAY CURTAIL

Regular verb: curtail - curtailed - curtailed

Affirmation

Simple form	V-ing form
I may curtail you may curtail he may curtail we may curtail you may curtail they may curtail	I may be curtailing you may be curtailing he may be curtailing we may be curtailing you may be curtailing they may be curtailing
Perfect	V-ing perfect
I may have curtailed you may have curtailed he may have curtailed we may have curtailed you may have curtailed they may have curtailed	I may have been curtailing you may have been curtailing he may have been curtailing we may have been curtailing you may have been curtailing they may have been curtailing

Negation

Simple form	V-ing form
I mayn't curtail you mayn't curtail he mayn't curtail we mayn't curtail you mayn't curtail they mayn't curtail	I mayn't be curtailing you mayn't be curtailing he mayn't be curtailing we mayn't be curtailing you mayn't be curtailing they mayn't be curtailing
Perfect	V-ing perfect
I mayn't have curtailed you mayn't have curtailed he mayn't have curtailed we mayn't have curtailed you mayn't have curtailed they mayn't have curtailed	I mayn't have been curtailing you mayn't have been curtailing he mayn't have been curtailing we mayn't have been curtailing you mayn't have been curtailing they mayn't have been curtailing

Interrogative form

Simple form	V-ing form
may I curtail? may you curtail? may he curtail? may we curtail? may you curtail? may they curtail?	may I be curtailing? may you be curtailing? may he be curtailing? may we be curtailing? may you be curtailing? may they be curtailing?
Perfect	V-ing perfect
may I have curtailed? may you have curtailed? may he have curtailed? may we have curtailed? may you have curtailed? may they have curtailed?	may I have been curtailing? may you have been curtailing? may he have been curtailing? may we have been curtailing? may you have been curtailing? may they have been curtailing?

Interro-negative form

Simple form	V-ing form
mayn't I curtail? mayn't you curtail? mayn't he curtail? mayn't we curtail? mayn't you curtail? mayn't they curtail?	mayn't I be curtailing? mayn't you be curtailing? mayn't he be curtailing? mayn't we be curtailing? mayn't you be curtailing? mayn't they be curtailing?
Perfect	V-ing perfect
mayn't I have curtailed? mayn't you have curtailed? mayn't he have curtailed? mayn't we have curtailed? mayn't you have curtailed? mayn't they have curtailed?	mayn't I have been curtailing? mayn't you have been curtailing? mayn't he have been curtailing? mayn't we have been curtailing? mayn't you have been curtailing? mayn't they have been curtailing?