I should pierce you should pierce he should pierce we should pierce you should pierce they should pierce
V-ing form
I should be piercing you should be piercing he should be piercing we should be piercing you should be piercing they should be piercing
Perfect
I should have pierced you should have pierced he should have pierced we should have pierced you should have pierced they should have pierced
V-ing perfect
I should have been piercing you should have been piercing he should have been piercing we should have been piercing you should have been piercing they should have been piercing
Negation
Simple form
I should not pierce you should not pierce he should not pierce we should not pierce you should not pierce they should not pierce
V-ing form
I should not be piercing you should not be piercing he should not be piercing we should not be piercing you should not be piercing they should not be piercing
Perfect
I should not have pierced you should not have pierced he should not have pierced we should not have pierced you should not have pierced they should not have pierced
V-ing perfect
I should not have been piercing you should not have been piercing he should not have been piercing we should not have been piercing you should not have been piercing they should not have been piercing
Interrogative form
Simple form
should I pierce? should you pierce? should he pierce? should we pierce? should you pierce? should they pierce?
V-ing form
should I be piercing? should you be piercing? should he be piercing? should we be piercing? should you be piercing? should they be piercing?
Perfect
should I have pierced? should you have pierced? should he have pierced? should we have pierced? should you have pierced? should they have pierced?
V-ing perfect
should I have been piercing? should you have been piercing? should he have been piercing? should we have been piercing? should you have been piercing? should they have been piercing?
Interro-negative form
Simple form
should I not pierce? should you not pierce? should he not pierce? should we not pierce? should you not pierce? should they not pierce?
V-ing form
should I not be piercing? should you not be piercing? should he not be piercing? should we not be piercing? should you not be piercing? should they not be piercing?
Perfect
should I not have pierced? should you not have pierced? should he not have pierced? should we not have pierced? should you not have pierced? should they not have pierced?
V-ing perfect
should I not have been piercing? should you not have been piercing? should he not have been piercing? should we not have been piercing? should you not have been piercing? should they not have been piercing?