must tub tub
Verbe régulier : tub tub - tub tubed- tub tubed

, ce verbe peut ne pas exister, la conjugaison est donnée à titre d'exemple.

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

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

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

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