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