must tat
Verbe régulier : tat - tatted- tatted

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must tat
you must tat
she must tat
we must tat
you must tat
they must tat 	I must be tatting
you must be tatting
she must be tatting
we must be tatting
you must be tatting
they must be tatting	I must have tatted
you must have tatted
she must have tatted
we must have tatted
you must have tatted
they must have tatted	I must have been tatting
you must have been tatting
she must have been tatting
we must have been tatting
you must have been tatting
they must have been tatting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not tat
you must not tat
she must not tat
we must not tat
you must not tat
they must not tat 	I must not be tatting
you must not be tatting
she must not be tatting
we must not be tatting
you must not be tatting
they must not be tatting	I must not have tatted
you must not have tatted
she must not have tatted
we must not have tatted
you must not have tatted
they must not have tatted	I must not have been tatting
you must not have been tatting
she must not have been tatting
we must not have been tatting
you must not have been tatting
they must not have been tatting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I tat?
must you tat?
must she tat?
must we tat?
must you tat?
must they tat? 	must I be tatting?
must you be tatting?
must she be tatting?
must we be tatting?
must you be tatting?
must they be tatting? 	must I have tatted?
must you have tatted?
must she have tatted?
must we have tatted?
must you have tatted?
must they have tatted? 	must I have been tatting?
must you have been tatting?
must she have been tatting?
must we have been tatting?
must you have been tatting?
must they have been tatting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not tat?
must you not tat?
must she not tat?
must we not tat?
must you not tat?
must they not tat? 	must I not be tatting?
must you not be tatting?
must she not be tatting?
must we not be tatting?
must you not be tatting?
must they not be tatting? 	must I not have tatted?
must you not have tatted?
must she not have tatted?
must we not have tatted?
must you not have tatted?
must they not have tatted? 	must I not have been tatting?
must you not have been tatting?
must she not have been tatting?
must we not have been tatting?
must you not have been tatting?
must they not have been tatting?