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