I'd be fending you'd be fending he'd be fending we'd be fending you'd be fending they'd be fending
Perfect
I should've fended you should've fended he should've fended we should've fended you should've fended they should've fended
V-ing perfect
I should've been fending you should've been fending he should've been fending we should've been fending you should've been fending they should've been fending
Negation
Simple form
I shouldn't fend you shouldn't fend he shouldn't fend we shouldn't fend you shouldn't fend they shouldn't fend
V-ing form
I shouldn't be fending you shouldn't be fending he shouldn't be fending we shouldn't be fending you shouldn't be fending they shouldn't be fending
Perfect
I shouldn't have fended you shouldn't have fended he shouldn't have fended we shouldn't have fended you shouldn't have fended they shouldn't have fended
V-ing perfect
I shouldn't have been fending you shouldn't have been fending he shouldn't have been fending we shouldn't have been fending you shouldn't have been fending they shouldn't have been fending
Interrogative form
Simple form
should I fend? should you fend? should he fend? should we fend? should you fend? should they fend?
V-ing form
should I be fending? should you be fending? should he be fending? should we be fending? should you be fending? should they be fending?
Perfect
should I have fended? should you have fended? should he have fended? should we have fended? should you have fended? should they have fended?
V-ing perfect
should I have been fending? should you have been fending? should he have been fending? should we have been fending? should you have been fending? should they have been fending?
Interro-negative form
Simple form
shouldn't I fend? shouldn't you fend? shouldn't he fend? shouldn't we fend? shouldn't you fend? shouldn't they fend?
V-ing form
shouldn't I be fending? shouldn't you be fending? shouldn't he be fending? shouldn't we be fending? shouldn't you be fending? shouldn't they be fending?
Perfect
shouldn't I have fended? shouldn't you have fended? shouldn't he have fended? shouldn't we have fended? shouldn't you have fended? shouldn't they have fended?
V-ing perfect
shouldn't I have been fending? shouldn't you have been fending? shouldn't he have been fending? shouldn't we have been fending? shouldn't you have been fending? shouldn't they have been fending?