I may fitter you may fitter he may fitter we may fitter you may fitter they may fitter
V-ing form
I may be fittering you may be fittering he may be fittering we may be fittering you may be fittering they may be fittering
Perfect
I may have fittered you may have fittered he may have fittered we may have fittered you may have fittered they may have fittered
V-ing perfect
I may have been fittering you may have been fittering he may have been fittering we may have been fittering you may have been fittering they may have been fittering
Negation
Simple form
I may not fitter you may not fitter he may not fitter we may not fitter you may not fitter they may not fitter
V-ing form
I may not be fittering you may not be fittering he may not be fittering we may not be fittering you may not be fittering they may not be fittering
Perfect
I may not have fittered you may not have fittered he may not have fittered we may not have fittered you may not have fittered they may not have fittered
V-ing perfect
I may not have been fittering you may not have been fittering he may not have been fittering we may not have been fittering you may not have been fittering they may not have been fittering
Interrogative form
Simple form
may I fitter? may you fitter? may he fitter? may we fitter? may you fitter? may they fitter?
V-ing form
may I be fittering? may you be fittering? may he be fittering? may we be fittering? may you be fittering? may they be fittering?
Perfect
may I have fittered? may you have fittered? may he have fittered? may we have fittered? may you have fittered? may they have fittered?
V-ing perfect
may I have been fittering? may you have been fittering? may he have been fittering? may we have been fittering? may you have been fittering? may they have been fittering?
Interro-negative form
Simple form
may I not fitter? may you not fitter? may he not fitter? may we not fitter? may you not fitter? may they not fitter?
V-ing form
may I not be fittering? may you not be fittering? may he not be fittering? may we not be fittering? may you not be fittering? may they not be fittering?
Perfect
may I not have fittered? may you not have fittered? may he not have fittered? may we not have fittered? may you not have fittered? may they not have fittered?
V-ing perfect
may I not have been fittering? may you not have been fittering? may he not have been fittering? may we not have been fittering? may you not have been fittering? may they not have been fittering?