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