I can serge you can serge he can serge we can serge you can serge they can serge
Forme en V-ing
I can be serging you can be serging he can be serging we can be serging you can be serging they can be serging
Perfect
I can have serged you can have serged he can have serged we can have serged you can have serged they can have serged
Perfect en V-ing
I can have been serging you can have been serging he can have been serging we can have been serging you can have been serging they can have been serging
Négation
Forme simple
I can't serge you can't serge he can't serge we can't serge you can't serge they can't serge
Forme en V-ing
I can't be serging you can't be serging he can't be serging we can't be serging you can't be serging they can't be serging
Perfect
I can't have serged you can't have serged he can't have serged we can't have serged you can't have serged they can't have serged
Perfect en V-ing
I can't have been serging you can't have been serging he can't have been serging we can't have been serging you can't have been serging they can't have been serging
Forme interrogative
Forme simple
can I serge? can you serge? can he serge? can we serge? can you serge? can they serge?
Forme en V-ing
can I be serging? can you be serging? can he be serging? can we be serging? can you be serging? can they be serging?
Perfect
can I have serged? can you have serged? can he have serged? can we have serged? can you have serged? can they have serged?
Perfect en V-ing
can I have been serging? can you have been serging? can he have been serging? can we have been serging? can you have been serging? can they have been serging?
Forme interro-négative
Forme simple
can't I serge? can't you serge? can't he serge? can't we serge? can't you serge? can't they serge?
Forme en V-ing
can't I be serging? can't you be serging? can't he be serging? can't we be serging? can't you be serging? can't they be serging?
Perfect
can't I have serged? can't you have serged? can't he have serged? can't we have serged? can't you have serged? can't they have serged?
Perfect en V-ing
can't I have been serging? can't you have been serging? can't he have been serging? can't we have been serging? can't you have been serging? can't they have been serging?