must cascade
Verbe régulier : cascade - cascaded- cascaded
Traduction française : tomber en cascade - ruisseler 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must cascade
you must cascade
she must cascade
we must cascade
you must cascade
they must cascade 	I must be cascading
you must be cascading
she must be cascading
we must be cascading
you must be cascading
they must be cascading	I must have cascaded
you must have cascaded
she must have cascaded
we must have cascaded
you must have cascaded
they must have cascaded	I must have been cascading
you must have been cascading
she must have been cascading
we must have been cascading
you must have been cascading
they must have been cascading	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't cascade
you mustn't cascade
she mustn't cascade
we mustn't cascade
you mustn't cascade
they mustn't cascade 	I mustn't be cascading
you mustn't be cascading
she mustn't be cascading
we mustn't be cascading
you mustn't be cascading
they mustn't be cascading	I mustn't have cascaded
you mustn't have cascaded
she mustn't have cascaded
we mustn't have cascaded
you mustn't have cascaded
they mustn't have cascaded	I mustn't have been cascading
you mustn't have been cascading
she mustn't have been cascading
we mustn't have been cascading
you mustn't have been cascading
they mustn't have been cascading	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I cascade?
must you cascade?
must she cascade?
must we cascade?
must you cascade?
must they cascade? 	must I be cascading?
must you be cascading?
must she be cascading?
must we be cascading?
must you be cascading?
must they be cascading? 	must I have cascaded?
must you have cascaded?
must she have cascaded?
must we have cascaded?
must you have cascaded?
must they have cascaded? 	must I have been cascading?
must you have been cascading?
must she have been cascading?
must we have been cascading?
must you have been cascading?
must they have been cascading? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I cascade?
mustn't you cascade?
mustn't she cascade?
mustn't we cascade?
mustn't you cascade?
mustn't they cascade? 	mustn't I be cascading?
mustn't you be cascading?
mustn't she be cascading?
mustn't we be cascading?
mustn't you be cascading?
mustn't they be cascading? 	mustn't I have cascaded?
mustn't you have cascaded?
mustn't she have cascaded?
mustn't we have cascaded?
mustn't you have cascaded?
mustn't they have cascaded? 	mustn't I have been cascading?
mustn't you have been cascading?
mustn't she have been cascading?
mustn't we have been cascading?
mustn't you have been cascading?
mustn't they have been cascading?