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