must tub
Verbe régulier : tub - tubbed- tubbed

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must tub
you must tub
he must tub
we must tub
you must tub
they must tub 	I must be tubbing
you must be tubbing
he must be tubbing
we must be tubbing
you must be tubbing
they must be tubbing	I must have tubbed
you must have tubbed
he must have tubbed
we must have tubbed
you must have tubbed
they must have tubbed	I must have been tubbing
you must have been tubbing
he must have been tubbing
we must have been tubbing
you must have been tubbing
they must have been tubbing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not tub
you must not tub
he must not tub
we must not tub
you must not tub
they must not tub 	I must not be tubbing
you must not be tubbing
he must not be tubbing
we must not be tubbing
you must not be tubbing
they must not be tubbing	I must not have tubbed
you must not have tubbed
he must not have tubbed
we must not have tubbed
you must not have tubbed
they must not have tubbed	I must not have been tubbing
you must not have been tubbing
he must not have been tubbing
we must not have been tubbing
you must not have been tubbing
they must not have been tubbing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I tub?
must you tub?
must he tub?
must we tub?
must you tub?
must they tub? 	must I be tubbing?
must you be tubbing?
must he be tubbing?
must we be tubbing?
must you be tubbing?
must they be tubbing? 	must I have tubbed?
must you have tubbed?
must he have tubbed?
must we have tubbed?
must you have tubbed?
must they have tubbed? 	must I have been tubbing?
must you have been tubbing?
must he have been tubbing?
must we have been tubbing?
must you have been tubbing?
must they have been tubbing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not tub?
must you not tub?
must he not tub?
must we not tub?
must you not tub?
must they not tub? 	must I not be tubbing?
must you not be tubbing?
must he not be tubbing?
must we not be tubbing?
must you not be tubbing?
must they not be tubbing? 	must I not have tubbed?
must you not have tubbed?
must he not have tubbed?
must we not have tubbed?
must you not have tubbed?
must they not have tubbed? 	must I not have been tubbing?
must you not have been tubbing?
must he not have been tubbing?
must we not have been tubbing?
must you not have been tubbing?
must they not have been tubbing?