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