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