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