must sicken
Verbe régulier : sicken - sickened- sickened
Traduction française : éc&oelig;urer - tomber malade 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must sicken
you must sicken
he must sicken
we must sicken
you must sicken
they must sicken 	I must be sickening
you must be sickening
he must be sickening
we must be sickening
you must be sickening
they must be sickening	I must have sickened
you must have sickened
he must have sickened
we must have sickened
you must have sickened
they must have sickened	I must have been sickening
you must have been sickening
he must have been sickening
we must have been sickening
you must have been sickening
they must have been sickening	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't sicken
you mustn't sicken
he mustn't sicken
we mustn't sicken
you mustn't sicken
they mustn't sicken 	I mustn't be sickening
you mustn't be sickening
he mustn't be sickening
we mustn't be sickening
you mustn't be sickening
they mustn't be sickening	I mustn't have sickened
you mustn't have sickened
he mustn't have sickened
we mustn't have sickened
you mustn't have sickened
they mustn't have sickened	I mustn't have been sickening
you mustn't have been sickening
he mustn't have been sickening
we mustn't have been sickening
you mustn't have been sickening
they mustn't have been sickening	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I sicken?
must you sicken?
must he sicken?
must we sicken?
must you sicken?
must they sicken? 	must I be sickening?
must you be sickening?
must he be sickening?
must we be sickening?
must you be sickening?
must they be sickening? 	must I have sickened?
must you have sickened?
must he have sickened?
must we have sickened?
must you have sickened?
must they have sickened? 	must I have been sickening?
must you have been sickening?
must he have been sickening?
must we have been sickening?
must you have been sickening?
must they have been sickening? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I sicken?
mustn't you sicken?
mustn't he sicken?
mustn't we sicken?
mustn't you sicken?
mustn't they sicken? 	mustn't I be sickening?
mustn't you be sickening?
mustn't he be sickening?
mustn't we be sickening?
mustn't you be sickening?
mustn't they be sickening? 	mustn't I have sickened?
mustn't you have sickened?
mustn't he have sickened?
mustn't we have sickened?
mustn't you have sickened?
mustn't they have sickened? 	mustn't I have been sickening?
mustn't you have been sickening?
mustn't he have been sickening?
mustn't we have been sickening?
mustn't you have been sickening?
mustn't they have been sickening?