I should frighten you should frighten he should frighten we should frighten you should frighten they should frighten
V-ing form
I should be frightening you should be frightening he should be frightening we should be frightening you should be frightening they should be frightening
Perfect
I should have frightened you should have frightened he should have frightened we should have frightened you should have frightened they should have frightened
V-ing perfect
I should have been frightening you should have been frightening he should have been frightening we should have been frightening you should have been frightening they should have been frightening
Negation
Simple form
I should not frighten you should not frighten he should not frighten we should not frighten you should not frighten they should not frighten
V-ing form
I should not be frightening you should not be frightening he should not be frightening we should not be frightening you should not be frightening they should not be frightening
Perfect
I should not have frightened you should not have frightened he should not have frightened we should not have frightened you should not have frightened they should not have frightened
V-ing perfect
I should not have been frightening you should not have been frightening he should not have been frightening we should not have been frightening you should not have been frightening they should not have been frightening
Interrogative form
Simple form
should I frighten? should you frighten? should he frighten? should we frighten? should you frighten? should they frighten?
V-ing form
should I be frightening? should you be frightening? should he be frightening? should we be frightening? should you be frightening? should they be frightening?
Perfect
should I have frightened? should you have frightened? should he have frightened? should we have frightened? should you have frightened? should they have frightened?
V-ing perfect
should I have been frightening? should you have been frightening? should he have been frightening? should we have been frightening? should you have been frightening? should they have been frightening?
Interro-negative form
Simple form
should I not frighten? should you not frighten? should he not frighten? should we not frighten? should you not frighten? should they not frighten?
V-ing form
should I not be frightening? should you not be frightening? should he not be frightening? should we not be frightening? should you not be frightening? should they not be frightening?
Perfect
should I not have frightened? should you not have frightened? should he not have frightened? should we not have frightened? should you not have frightened? should they not have frightened?
V-ing perfect
should I not have been frightening? should you not have been frightening? should he not have been frightening? should we not have been frightening? should you not have been frightening? should they not have been frightening?