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