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