must sink
Verbe irrégulier : sink - sank, sunk- sunk
Traduction française : couler 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must sink
you must sink
he must sink
we must sink
you must sink
they must sink 	I must be sinking
you must be sinking
he must be sinking
we must be sinking
you must be sinking
they must be sinking	I must have sunk
you must have sunk
he must have sunk
we must have sunk
you must have sunk
they must have sunk	I must have been sinking
you must have been sinking
he must have been sinking
we must have been sinking
you must have been sinking
they must have been sinking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not sink
you must not sink
he must not sink
we must not sink
you must not sink
they must not sink 	I must not be sinking
you must not be sinking
he must not be sinking
we must not be sinking
you must not be sinking
they must not be sinking	I must not have sunk
you must not have sunk
he must not have sunk
we must not have sunk
you must not have sunk
they must not have sunk	I must not have been sinking
you must not have been sinking
he must not have been sinking
we must not have been sinking
you must not have been sinking
they must not have been sinking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I sink?
must you sink?
must he sink?
must we sink?
must you sink?
must they sink? 	must I be sinking?
must you be sinking?
must he be sinking?
must we be sinking?
must you be sinking?
must they be sinking? 	must I have sunk?
must you have sunk?
must he have sunk?
must we have sunk?
must you have sunk?
must they have sunk? 	must I have been sinking?
must you have been sinking?
must he have been sinking?
must we have been sinking?
must you have been sinking?
must they have been sinking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not sink?
must you not sink?
must he not sink?
must we not sink?
must you not sink?
must they not sink? 	must I not be sinking?
must you not be sinking?
must he not be sinking?
must we not be sinking?
must you not be sinking?
must they not be sinking? 	must I not have sunk?
must you not have sunk?
must he not have sunk?
must we not have sunk?
must you not have sunk?
must they not have sunk? 	must I not have been sinking?
must you not have been sinking?
must he not have been sinking?
must we not have been sinking?
must you not have been sinking?
must they not have been sinking?