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