I must ultracentrifuge you must ultracentrifuge he must ultracentrifuge we must ultracentrifuge you must ultracentrifuge they must ultracentrifuge
Forme en V-ing
I must be ultracentrifuging you must be ultracentrifuging he must be ultracentrifuging we must be ultracentrifuging you must be ultracentrifuging they must be ultracentrifuging
Perfect
I must have ultracentrifuged you must have ultracentrifuged he must have ultracentrifuged we must have ultracentrifuged you must have ultracentrifuged they must have ultracentrifuged
Perfect en V-ing
I must have been ultracentrifuging you must have been ultracentrifuging he must have been ultracentrifuging we must have been ultracentrifuging you must have been ultracentrifuging they must have been ultracentrifuging
Négation
Forme simple
I mustn't ultracentrifuge you mustn't ultracentrifuge he mustn't ultracentrifuge we mustn't ultracentrifuge you mustn't ultracentrifuge they mustn't ultracentrifuge
Forme en V-ing
I mustn't be ultracentrifuging you mustn't be ultracentrifuging he mustn't be ultracentrifuging we mustn't be ultracentrifuging you mustn't be ultracentrifuging they mustn't be ultracentrifuging
Perfect
I mustn't have ultracentrifuged you mustn't have ultracentrifuged he mustn't have ultracentrifuged we mustn't have ultracentrifuged you mustn't have ultracentrifuged they mustn't have ultracentrifuged
Perfect en V-ing
I mustn't have been ultracentrifuging you mustn't have been ultracentrifuging he mustn't have been ultracentrifuging we mustn't have been ultracentrifuging you mustn't have been ultracentrifuging they mustn't have been ultracentrifuging
Forme interrogative
Forme simple
must I ultracentrifuge? must you ultracentrifuge? must he ultracentrifuge? must we ultracentrifuge? must you ultracentrifuge? must they ultracentrifuge?
Forme en V-ing
must I be ultracentrifuging? must you be ultracentrifuging? must he be ultracentrifuging? must we be ultracentrifuging? must you be ultracentrifuging? must they be ultracentrifuging?
Perfect
must I have ultracentrifuged? must you have ultracentrifuged? must he have ultracentrifuged? must we have ultracentrifuged? must you have ultracentrifuged? must they have ultracentrifuged?
Perfect en V-ing
must I have been ultracentrifuging? must you have been ultracentrifuging? must he have been ultracentrifuging? must we have been ultracentrifuging? must you have been ultracentrifuging? must they have been ultracentrifuging?
Forme interro-négative
Forme simple
mustn't I ultracentrifuge? mustn't you ultracentrifuge? mustn't he ultracentrifuge? mustn't we ultracentrifuge? mustn't you ultracentrifuge? mustn't they ultracentrifuge?
Forme en V-ing
mustn't I be ultracentrifuging? mustn't you be ultracentrifuging? mustn't he be ultracentrifuging? mustn't we be ultracentrifuging? mustn't you be ultracentrifuging? mustn't they be ultracentrifuging?
Perfect
mustn't I have ultracentrifuged? mustn't you have ultracentrifuged? mustn't he have ultracentrifuged? mustn't we have ultracentrifuged? mustn't you have ultracentrifuged? mustn't they have ultracentrifuged?
Perfect en V-ing
mustn't I have been ultracentrifuging? mustn't you have been ultracentrifuging? mustn't he have been ultracentrifuging? mustn't we have been ultracentrifuging? mustn't you have been ultracentrifuging? mustn't they have been ultracentrifuging?