must steamer
Verbe régulier : steamer - steamered- steamered

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must steamer
you must steamer
he must steamer
we must steamer
you must steamer
they must steamer 	I must be steamering
you must be steamering
he must be steamering
we must be steamering
you must be steamering
they must be steamering	I must have steamered
you must have steamered
he must have steamered
we must have steamered
you must have steamered
they must have steamered	I must have been steamering
you must have been steamering
he must have been steamering
we must have been steamering
you must have been steamering
they must have been steamering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't steamer
you mustn't steamer
he mustn't steamer
we mustn't steamer
you mustn't steamer
they mustn't steamer 	I mustn't be steamering
you mustn't be steamering
he mustn't be steamering
we mustn't be steamering
you mustn't be steamering
they mustn't be steamering	I mustn't have steamered
you mustn't have steamered
he mustn't have steamered
we mustn't have steamered
you mustn't have steamered
they mustn't have steamered	I mustn't have been steamering
you mustn't have been steamering
he mustn't have been steamering
we mustn't have been steamering
you mustn't have been steamering
they mustn't have been steamering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I steamer?
must you steamer?
must he steamer?
must we steamer?
must you steamer?
must they steamer? 	must I be steamering?
must you be steamering?
must he be steamering?
must we be steamering?
must you be steamering?
must they be steamering? 	must I have steamered?
must you have steamered?
must he have steamered?
must we have steamered?
must you have steamered?
must they have steamered? 	must I have been steamering?
must you have been steamering?
must he have been steamering?
must we have been steamering?
must you have been steamering?
must they have been steamering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I steamer?
mustn't you steamer?
mustn't he steamer?
mustn't we steamer?
mustn't you steamer?
mustn't they steamer? 	mustn't I be steamering?
mustn't you be steamering?
mustn't he be steamering?
mustn't we be steamering?
mustn't you be steamering?
mustn't they be steamering? 	mustn't I have steamered?
mustn't you have steamered?
mustn't he have steamered?
mustn't we have steamered?
mustn't you have steamered?
mustn't they have steamered? 	mustn't I have been steamering?
mustn't you have been steamering?
mustn't he have been steamering?
mustn't we have been steamering?
mustn't you have been steamering?
mustn't they have been steamering?