I may federate you may federate she may federate we may federate you may federate they may federate
V-ing form
I may be federating you may be federating she may be federating we may be federating you may be federating they may be federating
Perfect
I may have federated you may have federated she may have federated we may have federated you may have federated they may have federated
V-ing perfect
I may have been federating you may have been federating she may have been federating we may have been federating you may have been federating they may have been federating
Negation
Simple form
I mayn't federate you mayn't federate she mayn't federate we mayn't federate you mayn't federate they mayn't federate
V-ing form
I mayn't be federating you mayn't be federating she mayn't be federating we mayn't be federating you mayn't be federating they mayn't be federating
Perfect
I mayn't have federated you mayn't have federated she mayn't have federated we mayn't have federated you mayn't have federated they mayn't have federated
V-ing perfect
I mayn't have been federating you mayn't have been federating she mayn't have been federating we mayn't have been federating you mayn't have been federating they mayn't have been federating
Interrogative form
Simple form
may I federate? may you federate? may she federate? may we federate? may you federate? may they federate?
V-ing form
may I be federating? may you be federating? may she be federating? may we be federating? may you be federating? may they be federating?
Perfect
may I have federated? may you have federated? may she have federated? may we have federated? may you have federated? may they have federated?
V-ing perfect
may I have been federating? may you have been federating? may she have been federating? may we have been federating? may you have been federating? may they have been federating?
Interro-negative form
Simple form
mayn't I federate? mayn't you federate? mayn't she federate? mayn't we federate? mayn't you federate? mayn't they federate?
V-ing form
mayn't I be federating? mayn't you be federating? mayn't she be federating? mayn't we be federating? mayn't you be federating? mayn't they be federating?
Perfect
mayn't I have federated? mayn't you have federated? mayn't she have federated? mayn't we have federated? mayn't you have federated? mayn't they have federated?
V-ing perfect
mayn't I have been federating? mayn't you have been federating? mayn't she have been federating? mayn't we have been federating? mayn't you have been federating? mayn't they have been federating?