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