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