I can extend you can extend she can extend we can extend you can extend they can extend
Forme en V-ing
I can be extending you can be extending she can be extending we can be extending you can be extending they can be extending
Perfect
I can have extended you can have extended she can have extended we can have extended you can have extended they can have extended
Perfect en V-ing
I can have been extending you can have been extending she can have been extending we can have been extending you can have been extending they can have been extending
Négation
Forme simple
I can't extend you can't extend she can't extend we can't extend you can't extend they can't extend
Forme en V-ing
I can't be extending you can't be extending she can't be extending we can't be extending you can't be extending they can't be extending
Perfect
I can't have extended you can't have extended she can't have extended we can't have extended you can't have extended they can't have extended
Perfect en V-ing
I can't have been extending you can't have been extending she can't have been extending we can't have been extending you can't have been extending they can't have been extending
Forme interrogative
Forme simple
can I extend? can you extend? can she extend? can we extend? can you extend? can they extend?
Forme en V-ing
can I be extending? can you be extending? can she be extending? can we be extending? can you be extending? can they be extending?
Perfect
can I have extended? can you have extended? can she have extended? can we have extended? can you have extended? can they have extended?
Perfect en V-ing
can I have been extending? can you have been extending? can she have been extending? can we have been extending? can you have been extending? can they have been extending?
Forme interro-négative
Forme simple
can't I extend? can't you extend? can't she extend? can't we extend? can't you extend? can't they extend?
Forme en V-ing
can't I be extending? can't you be extending? can't she be extending? can't we be extending? can't you be extending? can't they be extending?
Perfect
can't I have extended? can't you have extended? can't she have extended? can't we have extended? can't you have extended? can't they have extended?
Perfect en V-ing
can't I have been extending? can't you have been extending? can't she have been extending? can't we have been extending? can't you have been extending? can't they have been extending?