must chain-smoke
Verbe régulier : chain-smoke - chain-smoked- chain-smoked
Traduction française : fumer cigarette sur cigarette 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must chain-smoke
you must chain-smoke
he must chain-smoke
we must chain-smoke
you must chain-smoke
they must chain-smoke 	I must be chain-smoking
you must be chain-smoking
he must be chain-smoking
we must be chain-smoking
you must be chain-smoking
they must be chain-smoking	I must have chain-smoked
you must have chain-smoked
he must have chain-smoked
we must have chain-smoked
you must have chain-smoked
they must have chain-smoked	I must have been chain-smoking
you must have been chain-smoking
he must have been chain-smoking
we must have been chain-smoking
you must have been chain-smoking
they must have been chain-smoking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't chain-smoke
you mustn't chain-smoke
he mustn't chain-smoke
we mustn't chain-smoke
you mustn't chain-smoke
they mustn't chain-smoke 	I mustn't be chain-smoking
you mustn't be chain-smoking
he mustn't be chain-smoking
we mustn't be chain-smoking
you mustn't be chain-smoking
they mustn't be chain-smoking	I mustn't have chain-smoked
you mustn't have chain-smoked
he mustn't have chain-smoked
we mustn't have chain-smoked
you mustn't have chain-smoked
they mustn't have chain-smoked	I mustn't have been chain-smoking
you mustn't have been chain-smoking
he mustn't have been chain-smoking
we mustn't have been chain-smoking
you mustn't have been chain-smoking
they mustn't have been chain-smoking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I chain-smoke?
must you chain-smoke?
must he chain-smoke?
must we chain-smoke?
must you chain-smoke?
must they chain-smoke? 	must I be chain-smoking?
must you be chain-smoking?
must he be chain-smoking?
must we be chain-smoking?
must you be chain-smoking?
must they be chain-smoking? 	must I have chain-smoked?
must you have chain-smoked?
must he have chain-smoked?
must we have chain-smoked?
must you have chain-smoked?
must they have chain-smoked? 	must I have been chain-smoking?
must you have been chain-smoking?
must he have been chain-smoking?
must we have been chain-smoking?
must you have been chain-smoking?
must they have been chain-smoking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I chain-smoke?
mustn't you chain-smoke?
mustn't he chain-smoke?
mustn't we chain-smoke?
mustn't you chain-smoke?
mustn't they chain-smoke? 	mustn't I be chain-smoking?
mustn't you be chain-smoking?
mustn't he be chain-smoking?
mustn't we be chain-smoking?
mustn't you be chain-smoking?
mustn't they be chain-smoking? 	mustn't I have chain-smoked?
mustn't you have chain-smoked?
mustn't he have chain-smoked?
mustn't we have chain-smoked?
mustn't you have chain-smoked?
mustn't they have chain-smoked? 	mustn't I have been chain-smoking?
mustn't you have been chain-smoking?
mustn't he have been chain-smoking?
mustn't we have been chain-smoking?
mustn't you have been chain-smoking?
mustn't they have been chain-smoking?