I'd be sneezing you'd be sneezing he'd be sneezing we'd be sneezing you'd be sneezing they'd be sneezing
Perfect
I should've sneezed you should've sneezed he should've sneezed we should've sneezed you should've sneezed they should've sneezed
V-ing perfect
I should've been sneezing you should've been sneezing he should've been sneezing we should've been sneezing you should've been sneezing they should've been sneezing
Negation
Simple form
I shouldn't sneeze you shouldn't sneeze he shouldn't sneeze we shouldn't sneeze you shouldn't sneeze they shouldn't sneeze
V-ing form
I shouldn't be sneezing you shouldn't be sneezing he shouldn't be sneezing we shouldn't be sneezing you shouldn't be sneezing they shouldn't be sneezing
Perfect
I shouldn't have sneezed you shouldn't have sneezed he shouldn't have sneezed we shouldn't have sneezed you shouldn't have sneezed they shouldn't have sneezed
V-ing perfect
I shouldn't have been sneezing you shouldn't have been sneezing he shouldn't have been sneezing we shouldn't have been sneezing you shouldn't have been sneezing they shouldn't have been sneezing
Interrogative form
Simple form
should I sneeze? should you sneeze? should he sneeze? should we sneeze? should you sneeze? should they sneeze?
V-ing form
should I be sneezing? should you be sneezing? should he be sneezing? should we be sneezing? should you be sneezing? should they be sneezing?
Perfect
should I have sneezed? should you have sneezed? should he have sneezed? should we have sneezed? should you have sneezed? should they have sneezed?
V-ing perfect
should I have been sneezing? should you have been sneezing? should he have been sneezing? should we have been sneezing? should you have been sneezing? should they have been sneezing?
Interro-negative form
Simple form
shouldn't I sneeze? shouldn't you sneeze? shouldn't he sneeze? shouldn't we sneeze? shouldn't you sneeze? shouldn't they sneeze?
V-ing form
shouldn't I be sneezing? shouldn't you be sneezing? shouldn't he be sneezing? shouldn't we be sneezing? shouldn't you be sneezing? shouldn't they be sneezing?
Perfect
shouldn't I have sneezed? shouldn't you have sneezed? shouldn't he have sneezed? shouldn't we have sneezed? shouldn't you have sneezed? shouldn't they have sneezed?
V-ing perfect
shouldn't I have been sneezing? shouldn't you have been sneezing? shouldn't he have been sneezing? shouldn't we have been sneezing? shouldn't you have been sneezing? shouldn't they have been sneezing?