I'd be lacking you'd be lacking he'd be lacking we'd be lacking you'd be lacking they'd be lacking
Perfect
I should've lacked you should've lacked he should've lacked we should've lacked you should've lacked they should've lacked
Perfect en V-ing
I should've been lacking you should've been lacking he should've been lacking we should've been lacking you should've been lacking they should've been lacking
Négation
Forme simple
I shouldn't lack you shouldn't lack he shouldn't lack we shouldn't lack you shouldn't lack they shouldn't lack
Forme en V-ing
I shouldn't be lacking you shouldn't be lacking he shouldn't be lacking we shouldn't be lacking you shouldn't be lacking they shouldn't be lacking
Perfect
I shouldn't have lacked you shouldn't have lacked he shouldn't have lacked we shouldn't have lacked you shouldn't have lacked they shouldn't have lacked
Perfect en V-ing
I shouldn't have been lacking you shouldn't have been lacking he shouldn't have been lacking we shouldn't have been lacking you shouldn't have been lacking they shouldn't have been lacking
Forme interrogative
Forme simple
should I lack? should you lack? should he lack? should we lack? should you lack? should they lack?
Forme en V-ing
should I be lacking? should you be lacking? should he be lacking? should we be lacking? should you be lacking? should they be lacking?
Perfect
should I have lacked? should you have lacked? should he have lacked? should we have lacked? should you have lacked? should they have lacked?
Perfect en V-ing
should I have been lacking? should you have been lacking? should he have been lacking? should we have been lacking? should you have been lacking? should they have been lacking?
Forme interro-négative
Forme simple
shouldn't I lack? shouldn't you lack? shouldn't he lack? shouldn't we lack? shouldn't you lack? shouldn't they lack?
Forme en V-ing
shouldn't I be lacking? shouldn't you be lacking? shouldn't he be lacking? shouldn't we be lacking? shouldn't you be lacking? shouldn't they be lacking?
Perfect
shouldn't I have lacked? shouldn't you have lacked? shouldn't he have lacked? shouldn't we have lacked? shouldn't you have lacked? shouldn't they have lacked?
Perfect en V-ing
shouldn't I have been lacking? shouldn't you have been lacking? shouldn't he have been lacking? shouldn't we have been lacking? shouldn't you have been lacking? shouldn't they have been lacking?