I should stare you should stare he should stare we should stare you should stare they should stare
V-ing form
I should be staring you should be staring he should be staring we should be staring you should be staring they should be staring
Perfect
I should have stared you should have stared he should have stared we should have stared you should have stared they should have stared
V-ing perfect
I should have been staring you should have been staring he should have been staring we should have been staring you should have been staring they should have been staring
Negation
Simple form
I should not stare you should not stare he should not stare we should not stare you should not stare they should not stare
V-ing form
I should not be staring you should not be staring he should not be staring we should not be staring you should not be staring they should not be staring
Perfect
I should not have stared you should not have stared he should not have stared we should not have stared you should not have stared they should not have stared
V-ing perfect
I should not have been staring you should not have been staring he should not have been staring we should not have been staring you should not have been staring they should not have been staring
Interrogative form
Simple form
should I stare? should you stare? should he stare? should we stare? should you stare? should they stare?
V-ing form
should I be staring? should you be staring? should he be staring? should we be staring? should you be staring? should they be staring?
Perfect
should I have stared? should you have stared? should he have stared? should we have stared? should you have stared? should they have stared?
V-ing perfect
should I have been staring? should you have been staring? should he have been staring? should we have been staring? should you have been staring? should they have been staring?
Interro-negative form
Simple form
should I not stare? should you not stare? should he not stare? should we not stare? should you not stare? should they not stare?
V-ing form
should I not be staring? should you not be staring? should he not be staring? should we not be staring? should you not be staring? should they not be staring?
Perfect
should I not have stared? should you not have stared? should he not have stared? should we not have stared? should you not have stared? should they not have stared?
V-ing perfect
should I not have been staring? should you not have been staring? should he not have been staring? should we not have been staring? should you not have been staring? should they not have been staring?