I can conserve you can conserve he can conserve we can conserve you can conserve they can conserve
Forme en V-ing
I can be conserving you can be conserving he can be conserving we can be conserving you can be conserving they can be conserving
Perfect
I can have conserved you can have conserved he can have conserved we can have conserved you can have conserved they can have conserved
Perfect en V-ing
I can have been conserving you can have been conserving he can have been conserving we can have been conserving you can have been conserving they can have been conserving
Négation
Forme simple
I can't conserve you can't conserve he can't conserve we can't conserve you can't conserve they can't conserve
Forme en V-ing
I can't be conserving you can't be conserving he can't be conserving we can't be conserving you can't be conserving they can't be conserving
Perfect
I can't have conserved you can't have conserved he can't have conserved we can't have conserved you can't have conserved they can't have conserved
Perfect en V-ing
I can't have been conserving you can't have been conserving he can't have been conserving we can't have been conserving you can't have been conserving they can't have been conserving
Forme interrogative
Forme simple
can I conserve? can you conserve? can he conserve? can we conserve? can you conserve? can they conserve?
Forme en V-ing
can I be conserving? can you be conserving? can he be conserving? can we be conserving? can you be conserving? can they be conserving?
Perfect
can I have conserved? can you have conserved? can he have conserved? can we have conserved? can you have conserved? can they have conserved?
Perfect en V-ing
can I have been conserving? can you have been conserving? can he have been conserving? can we have been conserving? can you have been conserving? can they have been conserving?
Forme interro-négative
Forme simple
can't I conserve? can't you conserve? can't he conserve? can't we conserve? can't you conserve? can't they conserve?
Forme en V-ing
can't I be conserving? can't you be conserving? can't he be conserving? can't we be conserving? can't you be conserving? can't they be conserving?
Perfect
can't I have conserved? can't you have conserved? can't he have conserved? can't we have conserved? can't you have conserved? can't they have conserved?
Perfect en V-ing
can't I have been conserving? can't you have been conserving? can't he have been conserving? can't we have been conserving? can't you have been conserving? can't they have been conserving?