must preshow
Verbe irrégulier : preshow - preshowed- preshown

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must preshow
you must preshow
she must preshow
we must preshow
you must preshow
they must preshow 	I must be preshowing
you must be preshowing
she must be preshowing
we must be preshowing
you must be preshowing
they must be preshowing	I must have preshown
you must have preshown
she must have preshown
we must have preshown
you must have preshown
they must have preshown	I must have been preshowing
you must have been preshowing
she must have been preshowing
we must have been preshowing
you must have been preshowing
they must have been preshowing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not preshow
you must not preshow
she must not preshow
we must not preshow
you must not preshow
they must not preshow 	I must not be preshowing
you must not be preshowing
she must not be preshowing
we must not be preshowing
you must not be preshowing
they must not be preshowing	I must not have preshown
you must not have preshown
she must not have preshown
we must not have preshown
you must not have preshown
they must not have preshown	I must not have been preshowing
you must not have been preshowing
she must not have been preshowing
we must not have been preshowing
you must not have been preshowing
they must not have been preshowing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I preshow?
must you preshow?
must she preshow?
must we preshow?
must you preshow?
must they preshow? 	must I be preshowing?
must you be preshowing?
must she be preshowing?
must we be preshowing?
must you be preshowing?
must they be preshowing? 	must I have preshown?
must you have preshown?
must she have preshown?
must we have preshown?
must you have preshown?
must they have preshown? 	must I have been preshowing?
must you have been preshowing?
must she have been preshowing?
must we have been preshowing?
must you have been preshowing?
must they have been preshowing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not preshow?
must you not preshow?
must she not preshow?
must we not preshow?
must you not preshow?
must they not preshow? 	must I not be preshowing?
must you not be preshowing?
must she not be preshowing?
must we not be preshowing?
must you not be preshowing?
must they not be preshowing? 	must I not have preshown?
must you not have preshown?
must she not have preshown?
must we not have preshown?
must you not have preshown?
must they not have preshown? 	must I not have been preshowing?
must you not have been preshowing?
must she not have been preshowing?
must we not have been preshowing?
must you not have been preshowing?
must they not have been preshowing?