I'd be spitting you'd be spitting she'd be spitting we'd be spitting you'd be spitting they'd be spitting
Perfect
I should've spit you should've spit she should've spit we should've spit you should've spit they should've spit
V-ing perfect
I should've been spitting you should've been spitting she should've been spitting we should've been spitting you should've been spitting they should've been spitting
Negation
Simple form
I shouldn't spit you shouldn't spit she shouldn't spit we shouldn't spit you shouldn't spit they shouldn't spit
V-ing form
I shouldn't be spitting you shouldn't be spitting she shouldn't be spitting we shouldn't be spitting you shouldn't be spitting they shouldn't be spitting
Perfect
I shouldn't have spit you shouldn't have spit she shouldn't have spit we shouldn't have spit you shouldn't have spit they shouldn't have spit
V-ing perfect
I shouldn't have been spitting you shouldn't have been spitting she shouldn't have been spitting we shouldn't have been spitting you shouldn't have been spitting they shouldn't 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
shouldn't I spit? shouldn't you spit? shouldn't she spit? shouldn't we spit? shouldn't you spit? shouldn't they spit?
V-ing form
shouldn't I be spitting? shouldn't you be spitting? shouldn't she be spitting? shouldn't we be spitting? shouldn't you be spitting? shouldn't they be spitting?
Perfect
shouldn't I have spit? shouldn't you have spit? shouldn't she have spit? shouldn't we have spit? shouldn't you have spit? shouldn't they have spit?
V-ing perfect
shouldn't I have been spitting? shouldn't you have been spitting? shouldn't she have been spitting? shouldn't we have been spitting? shouldn't you have been spitting? shouldn't they have been spitting?