I'd be backsolving you'd be backsolving she'd be backsolving we'd be backsolving you'd be backsolving they'd be backsolving
Perfect
I should've backsolved you should've backsolved she should've backsolved we should've backsolved you should've backsolved they should've backsolved
Perfect en V-ing
I should've been backsolving you should've been backsolving she should've been backsolving we should've been backsolving you should've been backsolving they should've been backsolving
Négation
Forme simple
I shouldn't backsolve you shouldn't backsolve she shouldn't backsolve we shouldn't backsolve you shouldn't backsolve they shouldn't backsolve
Forme en V-ing
I shouldn't be backsolving you shouldn't be backsolving she shouldn't be backsolving we shouldn't be backsolving you shouldn't be backsolving they shouldn't be backsolving
Perfect
I shouldn't have backsolved you shouldn't have backsolved she shouldn't have backsolved we shouldn't have backsolved you shouldn't have backsolved they shouldn't have backsolved
Perfect en V-ing
I shouldn't have been backsolving you shouldn't have been backsolving she shouldn't have been backsolving we shouldn't have been backsolving you shouldn't have been backsolving they shouldn't have been backsolving
Forme interrogative
Forme simple
should I backsolve? should you backsolve? should she backsolve? should we backsolve? should you backsolve? should they backsolve?
Forme en V-ing
should I be backsolving? should you be backsolving? should she be backsolving? should we be backsolving? should you be backsolving? should they be backsolving?
Perfect
should I have backsolved? should you have backsolved? should she have backsolved? should we have backsolved? should you have backsolved? should they have backsolved?
Perfect en V-ing
should I have been backsolving? should you have been backsolving? should she have been backsolving? should we have been backsolving? should you have been backsolving? should they have been backsolving?
Forme interro-négative
Forme simple
shouldn't I backsolve? shouldn't you backsolve? shouldn't she backsolve? shouldn't we backsolve? shouldn't you backsolve? shouldn't they backsolve?
Forme en V-ing
shouldn't I be backsolving? shouldn't you be backsolving? shouldn't she be backsolving? shouldn't we be backsolving? shouldn't you be backsolving? shouldn't they be backsolving?
Perfect
shouldn't I have backsolved? shouldn't you have backsolved? shouldn't she have backsolved? shouldn't we have backsolved? shouldn't you have backsolved? shouldn't they have backsolved?
Perfect en V-ing
shouldn't I have been backsolving? shouldn't you have been backsolving? shouldn't she have been backsolving? shouldn't we have been backsolving? shouldn't you have been backsolving? shouldn't they have been backsolving?