I may falter you may falter he may falter we may falter you may falter they may falter
V-ing form
I may be faltering you may be faltering he may be faltering we may be faltering you may be faltering they may be faltering
Perfect
I may have faltered you may have faltered he may have faltered we may have faltered you may have faltered they may have faltered
V-ing perfect
I may have been faltering you may have been faltering he may have been faltering we may have been faltering you may have been faltering they may have been faltering
Negation
Simple form
I may not falter you may not falter he may not falter we may not falter you may not falter they may not falter
V-ing form
I may not be faltering you may not be faltering he may not be faltering we may not be faltering you may not be faltering they may not be faltering
Perfect
I may not have faltered you may not have faltered he may not have faltered we may not have faltered you may not have faltered they may not have faltered
V-ing perfect
I may not have been faltering you may not have been faltering he may not have been faltering we may not have been faltering you may not have been faltering they may not have been faltering
Interrogative form
Simple form
may I falter? may you falter? may he falter? may we falter? may you falter? may they falter?
V-ing form
may I be faltering? may you be faltering? may he be faltering? may we be faltering? may you be faltering? may they be faltering?
Perfect
may I have faltered? may you have faltered? may he have faltered? may we have faltered? may you have faltered? may they have faltered?
V-ing perfect
may I have been faltering? may you have been faltering? may he have been faltering? may we have been faltering? may you have been faltering? may they have been faltering?
Interro-negative form
Simple form
may I not falter? may you not falter? may he not falter? may we not falter? may you not falter? may they not falter?
V-ing form
may I not be faltering? may you not be faltering? may he not be faltering? may we not be faltering? may you not be faltering? may they not be faltering?
Perfect
may I not have faltered? may you not have faltered? may he not have faltered? may we not have faltered? may you not have faltered? may they not have faltered?
V-ing perfect
may I not have been faltering? may you not have been faltering? may he not have been faltering? may we not have been faltering? may you not have been faltering? may they not have been faltering?