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