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