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