I must geometrise you must geometrise he must geometrise we must geometrise you must geometrise they must geometrise
V-ing form
I must be geometrising you must be geometrising he must be geometrising we must be geometrising you must be geometrising they must be geometrising
Perfect
I must have geometrised you must have geometrised he must have geometrised we must have geometrised you must have geometrised they must have geometrised
V-ing perfect
I must have been geometrising you must have been geometrising he must have been geometrising we must have been geometrising you must have been geometrising they must have been geometrising
Negation
Simple form
I mustn't geometrise you mustn't geometrise he mustn't geometrise we mustn't geometrise you mustn't geometrise they mustn't geometrise
V-ing form
I mustn't be geometrising you mustn't be geometrising he mustn't be geometrising we mustn't be geometrising you mustn't be geometrising they mustn't be geometrising
Perfect
I mustn't have geometrised you mustn't have geometrised he mustn't have geometrised we mustn't have geometrised you mustn't have geometrised they mustn't have geometrised
V-ing perfect
I mustn't have been geometrising you mustn't have been geometrising he mustn't have been geometrising we mustn't have been geometrising you mustn't have been geometrising they mustn't have been geometrising
Interrogative form
Simple form
must I geometrise? must you geometrise? must he geometrise? must we geometrise? must you geometrise? must they geometrise?
V-ing form
must I be geometrising? must you be geometrising? must he be geometrising? must we be geometrising? must you be geometrising? must they be geometrising?
Perfect
must I have geometrised? must you have geometrised? must he have geometrised? must we have geometrised? must you have geometrised? must they have geometrised?
V-ing perfect
must I have been geometrising? must you have been geometrising? must he have been geometrising? must we have been geometrising? must you have been geometrising? must they have been geometrising?
Interro-negative form
Simple form
mustn't I geometrise? mustn't you geometrise? mustn't he geometrise? mustn't we geometrise? mustn't you geometrise? mustn't they geometrise?
V-ing form
mustn't I be geometrising? mustn't you be geometrising? mustn't he be geometrising? mustn't we be geometrising? mustn't you be geometrising? mustn't they be geometrising?
Perfect
mustn't I have geometrised? mustn't you have geometrised? mustn't he have geometrised? mustn't we have geometrised? mustn't you have geometrised? mustn't they have geometrised?
V-ing perfect
mustn't I have been geometrising? mustn't you have been geometrising? mustn't he have been geometrising? mustn't we have been geometrising? mustn't you have been geometrising? mustn't they have been geometrising?