I should formulate you should formulate he should formulate we should formulate you should formulate they should formulate
V-ing form
I should be formulating you should be formulating he should be formulating we should be formulating you should be formulating they should be formulating
Perfect
I should have formulated you should have formulated he should have formulated we should have formulated you should have formulated they should have formulated
V-ing perfect
I should have been formulating you should have been formulating he should have been formulating we should have been formulating you should have been formulating they should have been formulating
Negation
Simple form
I should not formulate you should not formulate he should not formulate we should not formulate you should not formulate they should not formulate
V-ing form
I should not be formulating you should not be formulating he should not be formulating we should not be formulating you should not be formulating they should not be formulating
Perfect
I should not have formulated you should not have formulated he should not have formulated we should not have formulated you should not have formulated they should not have formulated
V-ing perfect
I should not have been formulating you should not have been formulating he should not have been formulating we should not have been formulating you should not have been formulating they should not have been formulating
Interrogative form
Simple form
should I formulate? should you formulate? should he formulate? should we formulate? should you formulate? should they formulate?
V-ing form
should I be formulating? should you be formulating? should he be formulating? should we be formulating? should you be formulating? should they be formulating?
Perfect
should I have formulated? should you have formulated? should he have formulated? should we have formulated? should you have formulated? should they have formulated?
V-ing perfect
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?
Interro-negative form
Simple form
should I not formulate? should you not formulate? should he not formulate? should we not formulate? should you not formulate? should they not formulate?
V-ing form
should I not be formulating? should you not be formulating? should he not be formulating? should we not be formulating? should you not be formulating? should they not be formulating?
Perfect
should I not have formulated? should you not have formulated? should he not have formulated? should we not have formulated? should you not have formulated? should they not have formulated?
V-ing perfect
should I not have been formulating? should you not have been formulating? should he not have been formulating? should we not have been formulating? should you not have been formulating? should they not have been formulating?