I may charter you may charter he may charter we may charter you may charter they may charter
V-ing form
I may be chartering you may be chartering he may be chartering we may be chartering you may be chartering they may be chartering
Perfect
I may have chartered you may have chartered he may have chartered we may have chartered you may have chartered they may have chartered
V-ing perfect
I may have been chartering you may have been chartering he may have been chartering we may have been chartering you may have been chartering they may have been chartering
Negation
Simple form
I mayn't charter you mayn't charter he mayn't charter we mayn't charter you mayn't charter they mayn't charter
V-ing form
I mayn't be chartering you mayn't be chartering he mayn't be chartering we mayn't be chartering you mayn't be chartering they mayn't be chartering
Perfect
I mayn't have chartered you mayn't have chartered he mayn't have chartered we mayn't have chartered you mayn't have chartered they mayn't have chartered
V-ing perfect
I mayn't have been chartering you mayn't have been chartering he mayn't have been chartering we mayn't have been chartering you mayn't have been chartering they mayn't have been chartering
Interrogative form
Simple form
may I charter? may you charter? may he charter? may we charter? may you charter? may they charter?
V-ing form
may I be chartering? may you be chartering? may he be chartering? may we be chartering? may you be chartering? may they be chartering?
Perfect
may I have chartered? may you have chartered? may he have chartered? may we have chartered? may you have chartered? may they have chartered?
V-ing perfect
may I have been chartering? may you have been chartering? may he have been chartering? may we have been chartering? may you have been chartering? may they have been chartering?
Interro-negative form
Simple form
mayn't I charter? mayn't you charter? mayn't he charter? mayn't we charter? mayn't you charter? mayn't they charter?
V-ing form
mayn't I be chartering? mayn't you be chartering? mayn't he be chartering? mayn't we be chartering? mayn't you be chartering? mayn't they be chartering?
Perfect
mayn't I have chartered? mayn't you have chartered? mayn't he have chartered? mayn't we have chartered? mayn't you have chartered? mayn't they have chartered?
V-ing perfect
mayn't I have been chartering? mayn't you have been chartering? mayn't he have been chartering? mayn't we have been chartering? mayn't you have been chartering? mayn't they have been chartering?