I'd be straining you'd be straining he'd be straining we'd be straining you'd be straining they'd be straining
Perfect
I should've strained you should've strained he 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 he 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 he 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 he 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 he 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 he 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 he strain? should we strain? should you strain? should they strain?
V-ing form
should I be straining? should you be straining? should he be straining? should we be straining? should you be straining? should they be straining?
Perfect
should I have strained? should you have strained? should he 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 he 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 he 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 he 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 he 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 he have been straining? shouldn't we have been straining? shouldn't you have been straining? shouldn't they have been straining?