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