I'd be formulating you'd be formulating he'd be formulating we'd be formulating you'd be formulating they'd be formulating
Perfecto
I should've formulated you should've formulated he should've formulated we should've formulated you should've formulated they should've formulated
Perfecto con V-ing
I should've been formulating you should've been formulating he should've been formulating we should've been formulating you should've been formulating they should've been formulating
Negación
Forma simple
I shouldn't formulate you shouldn't formulate he shouldn't formulate we shouldn't formulate you shouldn't formulate they shouldn't formulate
Forma con V-ing
I shouldn't be formulating you shouldn't be formulating he shouldn't be formulating we shouldn't be formulating you shouldn't be formulating they shouldn't be formulating
Perfecto
I shouldn't have formulated you shouldn't have formulated he shouldn't have formulated we shouldn't have formulated you shouldn't have formulated they shouldn't have formulated
Perfecto con V-ing
I shouldn't have been formulating you shouldn't have been formulating he shouldn't have been formulating we shouldn't have been formulating you shouldn't have been formulating they shouldn't have been formulating
Forma interrogativa
Forma simple
should I formulate? should you formulate? should he formulate? should we formulate? should you formulate? should they formulate?
Forma con V-ing
should I be formulating? should you be formulating? should he be formulating? should we be formulating? should you be formulating? should they be formulating?
Perfecto
should I have formulated? should you have formulated? should he have formulated? should we have formulated? should you have formulated? should they have formulated?
Perfecto con V-ing
should I have been formulating? should you have been formulating? should he have been formulating? should we have been formulating? should you have been formulating? should they have been formulating?
Forma interro-negativa
Forma simple
shouldn't I formulate? shouldn't you formulate? shouldn't he formulate? shouldn't we formulate? shouldn't you formulate? shouldn't they formulate?
Forma con V-ing
shouldn't I be formulating? shouldn't you be formulating? shouldn't he be formulating? shouldn't we be formulating? shouldn't you be formulating? shouldn't they be formulating?
Perfecto
shouldn't I have formulated? shouldn't you have formulated? shouldn't he have formulated? shouldn't we have formulated? shouldn't you have formulated? shouldn't they have formulated?
Perfecto con V-ing
shouldn't I have been formulating? shouldn't you have been formulating? shouldn't he have been formulating? shouldn't we have been formulating? shouldn't you have been formulating? shouldn't they have been formulating?