must pile
Verbe régulier : pile - piled- piled
Traduction française : empiler - monter ou descendre en bousculant 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must pile
you must pile
she must pile
we must pile
you must pile
they must pile 	I must be piling
you must be piling
she must be piling
we must be piling
you must be piling
they must be piling	I must have piled
you must have piled
she must have piled
we must have piled
you must have piled
they must have piled	I must have been piling
you must have been piling
she must have been piling
we must have been piling
you must have been piling
they must have been piling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not pile
you must not pile
she must not pile
we must not pile
you must not pile
they must not pile 	I must not be piling
you must not be piling
she must not be piling
we must not be piling
you must not be piling
they must not be piling	I must not have piled
you must not have piled
she must not have piled
we must not have piled
you must not have piled
they must not have piled	I must not have been piling
you must not have been piling
she must not have been piling
we must not have been piling
you must not have been piling
they must not have been piling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I pile?
must you pile?
must she pile?
must we pile?
must you pile?
must they pile? 	must I be piling?
must you be piling?
must she be piling?
must we be piling?
must you be piling?
must they be piling? 	must I have piled?
must you have piled?
must she have piled?
must we have piled?
must you have piled?
must they have piled? 	must I have been piling?
must you have been piling?
must she have been piling?
must we have been piling?
must you have been piling?
must they have been piling? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not pile?
must you not pile?
must she not pile?
must we not pile?
must you not pile?
must they not pile? 	must I not be piling?
must you not be piling?
must she not be piling?
must we not be piling?
must you not be piling?
must they not be piling? 	must I not have piled?
must you not have piled?
must she not have piled?
must we not have piled?
must you not have piled?
must they not have piled? 	must I not have been piling?
must you not have been piling?
must she not have been piling?
must we not have been piling?
must you not have been piling?
must they not have been piling?