I'd be observing you'd be observing she'd be observing we'd be observing you'd be observing they'd be observing
Perfecto
I should've observed you should've observed she should've observed we should've observed you should've observed they should've observed
Perfecto con 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
Negación
Forma 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
Forma con 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
Perfecto
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
Perfecto con 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
Forma interrogativa
Forma simple
should I observe? should you observe? should she observe? should we observe? should you observe? should they observe?
Forma con 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?
Perfecto
should I have observed? should you have observed? should she have observed? should we have observed? should you have observed? should they have observed?
Perfecto con 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?
Forma interro-negativa
Forma 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?
Forma con 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?
Perfecto
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?
Perfecto con 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?