English verb conjugation
MAY FORESTALL

Regular verb: forestall - forestalled - forestalled

Affirmation

Simple form	V-ing form
I may forestall you may forestall she may forestall we may forestall you may forestall they may forestall	I may be forestalling you may be forestalling she may be forestalling we may be forestalling you may be forestalling they may be forestalling
Perfect	V-ing perfect
I may have forestalled you may have forestalled she may have forestalled we may have forestalled you may have forestalled they may have forestalled	I may have been forestalling you may have been forestalling she may have been forestalling we may have been forestalling you may have been forestalling they may have been forestalling

Negation

Simple form	V-ing form
I mayn't forestall you mayn't forestall she mayn't forestall we mayn't forestall you mayn't forestall they mayn't forestall	I mayn't be forestalling you mayn't be forestalling she mayn't be forestalling we mayn't be forestalling you mayn't be forestalling they mayn't be forestalling
Perfect	V-ing perfect
I mayn't have forestalled you mayn't have forestalled she mayn't have forestalled we mayn't have forestalled you mayn't have forestalled they mayn't have forestalled	I mayn't have been forestalling you mayn't have been forestalling she mayn't have been forestalling we mayn't have been forestalling you mayn't have been forestalling they mayn't have been forestalling

Interrogative form

Simple form	V-ing form
may I forestall? may you forestall? may she forestall? may we forestall? may you forestall? may they forestall?	may I be forestalling? may you be forestalling? may she be forestalling? may we be forestalling? may you be forestalling? may they be forestalling?
Perfect	V-ing perfect
may I have forestalled? may you have forestalled? may she have forestalled? may we have forestalled? may you have forestalled? may they have forestalled?	may I have been forestalling? may you have been forestalling? may she have been forestalling? may we have been forestalling? may you have been forestalling? may they have been forestalling?

Interro-negative form

Simple form	V-ing form
mayn't I forestall? mayn't you forestall? mayn't she forestall? mayn't we forestall? mayn't you forestall? mayn't they forestall?	mayn't I be forestalling? mayn't you be forestalling? mayn't she be forestalling? mayn't we be forestalling? mayn't you be forestalling? mayn't they be forestalling?
Perfect	V-ing perfect
mayn't I have forestalled? mayn't you have forestalled? mayn't she have forestalled? mayn't we have forestalled? mayn't you have forestalled? mayn't they have forestalled?	mayn't I have been forestalling? mayn't you have been forestalling? mayn't she have been forestalling? mayn't we have been forestalling? mayn't you have been forestalling? mayn't they have been forestalling?