I can backdate you can backdate she can backdate we can backdate you can backdate they can backdate
Forme en V-ing
I can be backdating you can be backdating she can be backdating we can be backdating you can be backdating they can be backdating
Perfect
I can have backdated you can have backdated she 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 she can have been backdating we can have been backdating you can have been backdating they can have been backdating
Négation
Forme simple
I can't backdate you can't backdate she can't backdate we can't backdate you can't backdate they can't backdate
Forme en V-ing
I can't be backdating you can't be backdating she can't be backdating we can't be backdating you can't be backdating they can't be backdating
Perfect
I can't have backdated you can't have backdated she can't have backdated we can't have backdated you can't have backdated they can't have backdated
Perfect en V-ing
I can't have been backdating you can't have been backdating she can't have been backdating we can't have been backdating you can't have been backdating they can't have been backdating
Forme interrogative
Forme simple
can I backdate? can you backdate? can she backdate? can we backdate? can you backdate? can they backdate?
Forme en V-ing
can I be backdating? can you be backdating? can she be backdating? can we be backdating? can you be backdating? can they be backdating?
Perfect
can I have backdated? can you have backdated? can she 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 she have been backdating? can we have been backdating? can you have been backdating? can they have been backdating?
Forme interro-négative
Forme simple
can't I backdate? can't you backdate? can't she backdate? can't we backdate? can't you backdate? can't they backdate?
Forme en V-ing
can't I be backdating? can't you be backdating? can't she be backdating? can't we be backdating? can't you be backdating? can't they be backdating?
Perfect
can't I have backdated? can't you have backdated? can't she have backdated? can't we have backdated? can't you have backdated? can't they have backdated?
Perfect en V-ing
can't I have been backdating? can't you have been backdating? can't she have been backdating? can't we have been backdating? can't you have been backdating? can't they have been backdating?