I should japan you should japan he should japan we should japan you should japan they should japan
V-ing form
I should be japaning you should be japaning he should be japaning we should be japaning you should be japaning they should be japaning
Perfect
I should have japaned you should have japaned he should have japaned we should have japaned you should have japaned they should have japaned
V-ing perfect
I should have been japaning you should have been japaning he should have been japaning we should have been japaning you should have been japaning they should have been japaning
Negation
Simple form
I should not japan you should not japan he should not japan we should not japan you should not japan they should not japan
V-ing form
I should not be japaning you should not be japaning he should not be japaning we should not be japaning you should not be japaning they should not be japaning
Perfect
I should not have japaned you should not have japaned he should not have japaned we should not have japaned you should not have japaned they should not have japaned
V-ing perfect
I should not have been japaning you should not have been japaning he should not have been japaning we should not have been japaning you should not have been japaning they should not have been japaning
Interrogative form
Simple form
should I japan? should you japan? should he japan? should we japan? should you japan? should they japan?
V-ing form
should I be japaning? should you be japaning? should he be japaning? should we be japaning? should you be japaning? should they be japaning?
Perfect
should I have japaned? should you have japaned? should he have japaned? should we have japaned? should you have japaned? should they have japaned?
V-ing perfect
should I have been japaning? should you have been japaning? should he have been japaning? should we have been japaning? should you have been japaning? should they have been japaning?
Interro-negative form
Simple form
should I not japan? should you not japan? should he not japan? should we not japan? should you not japan? should they not japan?
V-ing form
should I not be japaning? should you not be japaning? should he not be japaning? should we not be japaning? should you not be japaning? should they not be japaning?
Perfect
should I not have japaned? should you not have japaned? should he not have japaned? should we not have japaned? should you not have japaned? should they not have japaned?
V-ing perfect
should I not have been japaning? should you not have been japaning? should he not have been japaning? should we not have been japaning? should you not have been japaning? should they not have been japaning?