I'd be grinding you'd be grinding she'd be grinding we'd be grinding you'd be grinding they'd be grinding
Perfect
I should've ground you should've ground she should've ground we should've ground you should've ground they should've ground
V-ing perfect
I should've been grinding you should've been grinding she should've been grinding we should've been grinding you should've been grinding they should've been grinding
Negation
Simple form
I shouldn't grind you shouldn't grind she shouldn't grind we shouldn't grind you shouldn't grind they shouldn't grind
V-ing form
I shouldn't be grinding you shouldn't be grinding she shouldn't be grinding we shouldn't be grinding you shouldn't be grinding they shouldn't be grinding
Perfect
I shouldn't have ground you shouldn't have ground she shouldn't have ground we shouldn't have ground you shouldn't have ground they shouldn't have ground
V-ing perfect
I shouldn't have been grinding you shouldn't have been grinding she shouldn't have been grinding we shouldn't have been grinding you shouldn't have been grinding they shouldn't have been grinding
Interrogative form
Simple form
should I grind? should you grind? should she grind? should we grind? should you grind? should they grind?
V-ing form
should I be grinding? should you be grinding? should she be grinding? should we be grinding? should you be grinding? should they be grinding?
Perfect
should I have ground? should you have ground? should she have ground? should we have ground? should you have ground? should they have ground?
V-ing perfect
should I have been grinding? should you have been grinding? should she have been grinding? should we have been grinding? should you have been grinding? should they have been grinding?
Interro-negative form
Simple form
shouldn't I grind? shouldn't you grind? shouldn't she grind? shouldn't we grind? shouldn't you grind? shouldn't they grind?
V-ing form
shouldn't I be grinding? shouldn't you be grinding? shouldn't she be grinding? shouldn't we be grinding? shouldn't you be grinding? shouldn't they be grinding?
Perfect
shouldn't I have ground? shouldn't you have ground? shouldn't she have ground? shouldn't we have ground? shouldn't you have ground? shouldn't they have ground?
V-ing perfect
shouldn't I have been grinding? shouldn't you have been grinding? shouldn't she have been grinding? shouldn't we have been grinding? shouldn't you have been grinding? shouldn't they have been grinding?