I must booby-trap you must booby-trap he must booby-trap we must booby-trap you must booby-trap they must booby-trap
V-ing form
I must be booby-traping you must be booby-traping he must be booby-traping we must be booby-traping you must be booby-traping they must be booby-traping
Perfect
I must have booby-traped you must have booby-traped he must have booby-traped we must have booby-traped you must have booby-traped they must have booby-traped
V-ing perfect
I must have been booby-traping you must have been booby-traping he must have been booby-traping we must have been booby-traping you must have been booby-traping they must have been booby-traping
Negation
Simple form
I mustn't booby-trap you mustn't booby-trap he mustn't booby-trap we mustn't booby-trap you mustn't booby-trap they mustn't booby-trap
V-ing form
I mustn't be booby-traping you mustn't be booby-traping he mustn't be booby-traping we mustn't be booby-traping you mustn't be booby-traping they mustn't be booby-traping
Perfect
I mustn't have booby-traped you mustn't have booby-traped he mustn't have booby-traped we mustn't have booby-traped you mustn't have booby-traped they mustn't have booby-traped
V-ing perfect
I mustn't have been booby-traping you mustn't have been booby-traping he mustn't have been booby-traping we mustn't have been booby-traping you mustn't have been booby-traping they mustn't have been booby-traping
Interrogative form
Simple form
must I booby-trap? must you booby-trap? must he booby-trap? must we booby-trap? must you booby-trap? must they booby-trap?
V-ing form
must I be booby-traping? must you be booby-traping? must he be booby-traping? must we be booby-traping? must you be booby-traping? must they be booby-traping?
Perfect
must I have booby-traped? must you have booby-traped? must he have booby-traped? must we have booby-traped? must you have booby-traped? must they have booby-traped?
V-ing perfect
must I have been booby-traping? must you have been booby-traping? must he have been booby-traping? must we have been booby-traping? must you have been booby-traping? must they have been booby-traping?
Interro-negative form
Simple form
mustn't I booby-trap? mustn't you booby-trap? mustn't he booby-trap? mustn't we booby-trap? mustn't you booby-trap? mustn't they booby-trap?
V-ing form
mustn't I be booby-traping? mustn't you be booby-traping? mustn't he be booby-traping? mustn't we be booby-traping? mustn't you be booby-traping? mustn't they be booby-traping?
Perfect
mustn't I have booby-traped? mustn't you have booby-traped? mustn't he have booby-traped? mustn't we have booby-traped? mustn't you have booby-traped? mustn't they have booby-traped?
V-ing perfect
mustn't I have been booby-traping? mustn't you have been booby-traping? mustn't he have been booby-traping? mustn't we have been booby-traping? mustn't you have been booby-traping? mustn't they have been booby-traping?