I should spit you should spit she should spit we should spit you should spit they should spit
V-ing form
I should be spitting you should be spitting she should be spitting we should be spitting you should be spitting they should be spitting
Perfect
I should have spit you should have spit she should have spit we should have spit you should have spit they should have spit
V-ing perfect
I should have been spitting you should have been spitting she should have been spitting we should have been spitting you should have been spitting they should have been spitting
Negation
Simple form
I should not spit you should not spit she should not spit we should not spit you should not spit they should not spit
V-ing form
I should not be spitting you should not be spitting she should not be spitting we should not be spitting you should not be spitting they should not be spitting
Perfect
I should not have spit you should not have spit she should not have spit we should not have spit you should not have spit they should not have spit
V-ing perfect
I should not have been spitting you should not have been spitting she should not have been spitting we should not have been spitting you should not have been spitting they should not have been spitting
Interrogative form
Simple form
should I spit? should you spit? should she spit? should we spit? should you spit? should they spit?
V-ing form
should I be spitting? should you be spitting? should she be spitting? should we be spitting? should you be spitting? should they be spitting?
Perfect
should I have spit? should you have spit? should she have spit? should we have spit? should you have spit? should they have spit?
V-ing perfect
should I have been spitting? should you have been spitting? should she have been spitting? should we have been spitting? should you have been spitting? should they have been spitting?
Interro-negative form
Simple form
should I not spit? should you not spit? should she not spit? should we not spit? should you not spit? should they not spit?
V-ing form
should I not be spitting? should you not be spitting? should she not be spitting? should we not be spitting? should you not be spitting? should they not be spitting?
Perfect
should I not have spit? should you not have spit? should she not have spit? should we not have spit? should you not have spit? should they not have spit?
V-ing perfect
should I not have been spitting? should you not have been spitting? should she not have been spitting? should we not have been spitting? should you not have been spitting? should they not have been spitting?