English verb conjugation
MAY PREALTER

Regular verb: prealter - prealtered - prealtered

Affirmation

Simple form	V-ing form
I may prealter you may prealter she may prealter we may prealter you may prealter they may prealter	I may be prealtering you may be prealtering she may be prealtering we may be prealtering you may be prealtering they may be prealtering
Perfect	V-ing perfect
I may have prealtered you may have prealtered she may have prealtered we may have prealtered you may have prealtered they may have prealtered	I may have been prealtering you may have been prealtering she may have been prealtering we may have been prealtering you may have been prealtering they may have been prealtering

Negation

Simple form	V-ing form
I may not prealter you may not prealter she may not prealter we may not prealter you may not prealter they may not prealter	I may not be prealtering you may not be prealtering she may not be prealtering we may not be prealtering you may not be prealtering they may not be prealtering
Perfect	V-ing perfect
I may not have prealtered you may not have prealtered she may not have prealtered we may not have prealtered you may not have prealtered they may not have prealtered	I may not have been prealtering you may not have been prealtering she may not have been prealtering we may not have been prealtering you may not have been prealtering they may not have been prealtering

Interrogative form

Simple form	V-ing form
may I prealter? may you prealter? may she prealter? may we prealter? may you prealter? may they prealter?	may I be prealtering? may you be prealtering? may she be prealtering? may we be prealtering? may you be prealtering? may they be prealtering?
Perfect	V-ing perfect
may I have prealtered? may you have prealtered? may she have prealtered? may we have prealtered? may you have prealtered? may they have prealtered?	may I have been prealtering? may you have been prealtering? may she have been prealtering? may we have been prealtering? may you have been prealtering? may they have been prealtering?

Interro-negative form

Simple form	V-ing form
may I not prealter? may you not prealter? may she not prealter? may we not prealter? may you not prealter? may they not prealter?	may I not be prealtering? may you not be prealtering? may she not be prealtering? may we not be prealtering? may you not be prealtering? may they not be prealtering?
Perfect	V-ing perfect
may I not have prealtered? may you not have prealtered? may she not have prealtered? may we not have prealtered? may you not have prealtered? may they not have prealtered?	may I not have been prealtering? may you not have been prealtering? may she not have been prealtering? may we not have been prealtering? may you not have been prealtering? may they not have been prealtering?