I can backdate you can backdate he can backdate we can backdate you can backdate they can backdate
Forme en V-ing
I can be backdating you can be backdating he can be backdating we can be backdating you can be backdating they can be backdating
Perfect
I can have backdated you can have backdated he can have backdated we can have backdated you can have backdated they can have backdated
Perfect en V-ing
I can have been backdating you can have been backdating he can have been backdating we can have been backdating you can have been backdating they can have been backdating
Négation
Forme simple
I cannot backdate you cannot backdate he cannot backdate we cannot backdate you cannot backdate they cannot backdate
Forme en V-ing
I cannot be backdating you cannot be backdating he cannot be backdating we cannot be backdating you cannot be backdating they cannot be backdating
Perfect
I cannot have backdated you cannot have backdated he cannot have backdated we cannot have backdated you cannot have backdated they cannot have backdated
Perfect en V-ing
I cannot have been backdating you cannot have been backdating he cannot have been backdating we cannot have been backdating you cannot have been backdating they cannot have been backdating
Forme interrogative
Forme simple
can I backdate? can you backdate? can he backdate? can we backdate? can you backdate? can they backdate?
Forme en V-ing
can I be backdating? can you be backdating? can he be backdating? can we be backdating? can you be backdating? can they be backdating?
Perfect
can I have backdated? can you have backdated? can he have backdated? can we have backdated? can you have backdated? can they have backdated?
Perfect en V-ing
can I have been backdating? can you have been backdating? can he have been backdating? can we have been backdating? can you have been backdating? can they have been backdating?
Forme interro-négative
Forme simple
can I not backdate? can you not backdate? can he not backdate? can we not backdate? can you not backdate? can they not backdate?
Forme en V-ing
can I not be backdating? can you not be backdating? can he not be backdating? can we not be backdating? can you not be backdating? can they not be backdating?
Perfect
can I not have backdated? can you not have backdated? can he not have backdated? can we not have backdated? can you not have backdated? can they not have backdated?
Perfect en V-ing
can I not have been backdating? can you not have been backdating? can he not have been backdating? can we not have been backdating? can you not have been backdating? can they not have been backdating?