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