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