English verb conjugation
MAY DERAIL

Regular verb: derail - derailed - derailed

Affirmation

Simple form	V-ing form
I may derail you may derail he may derail we may derail you may derail they may derail	I may be derailing you may be derailing he may be derailing we may be derailing you may be derailing they may be derailing
Perfect	V-ing perfect
I may have derailed you may have derailed he may have derailed we may have derailed you may have derailed they may have derailed	I may have been derailing you may have been derailing he may have been derailing we may have been derailing you may have been derailing they may have been derailing

Negation

Simple form	V-ing form
I mayn't derail you mayn't derail he mayn't derail we mayn't derail you mayn't derail they mayn't derail	I mayn't be derailing you mayn't be derailing he mayn't be derailing we mayn't be derailing you mayn't be derailing they mayn't be derailing
Perfect	V-ing perfect
I mayn't have derailed you mayn't have derailed he mayn't have derailed we mayn't have derailed you mayn't have derailed they mayn't have derailed	I mayn't have been derailing you mayn't have been derailing he mayn't have been derailing we mayn't have been derailing you mayn't have been derailing they mayn't have been derailing

Interrogative form

Simple form	V-ing form
may I derail? may you derail? may he derail? may we derail? may you derail? may they derail?	may I be derailing? may you be derailing? may he be derailing? may we be derailing? may you be derailing? may they be derailing?
Perfect	V-ing perfect
may I have derailed? may you have derailed? may he have derailed? may we have derailed? may you have derailed? may they have derailed?	may I have been derailing? may you have been derailing? may he have been derailing? may we have been derailing? may you have been derailing? may they have been derailing?

Interro-negative form

Simple form	V-ing form
mayn't I derail? mayn't you derail? mayn't he derail? mayn't we derail? mayn't you derail? mayn't they derail?	mayn't I be derailing? mayn't you be derailing? mayn't he be derailing? mayn't we be derailing? mayn't you be derailing? mayn't they be derailing?
Perfect	V-ing perfect
mayn't I have derailed? mayn't you have derailed? mayn't he have derailed? mayn't we have derailed? mayn't you have derailed? mayn't they have derailed?	mayn't I have been derailing? mayn't you have been derailing? mayn't he have been derailing? mayn't we have been derailing? mayn't you have been derailing? mayn't they have been derailing?