English verb conjugation
SHOULD DESCEND

Regular verb: descend - descended - descended

Affirmation

Simple form	V-ing form
I'd descend you'd descend he'd descend we'd descend you'd descend they'd descend	I'd be descending you'd be descending he'd be descending we'd be descending you'd be descending they'd be descending
Perfect	V-ing perfect
I should've descended you should've descended he should've descended we should've descended you should've descended they should've descended	I should've been descending you should've been descending he should've been descending we should've been descending you should've been descending they should've been descending

Negation

Simple form	V-ing form
I shouldn't descend you shouldn't descend he shouldn't descend we shouldn't descend you shouldn't descend they shouldn't descend	I shouldn't be descending you shouldn't be descending he shouldn't be descending we shouldn't be descending you shouldn't be descending they shouldn't be descending
Perfect	V-ing perfect
I shouldn't have descended you shouldn't have descended he shouldn't have descended we shouldn't have descended you shouldn't have descended they shouldn't have descended	I shouldn't have been descending you shouldn't have been descending he shouldn't have been descending we shouldn't have been descending you shouldn't have been descending they shouldn't have been descending

Interrogative form

Simple form	V-ing form
should I descend? should you descend? should he descend? should we descend? should you descend? should they descend?	should I be descending? should you be descending? should he be descending? should we be descending? should you be descending? should they be descending?
Perfect	V-ing perfect
should I have descended? should you have descended? should he have descended? should we have descended? should you have descended? should they have descended?	should I have been descending? should you have been descending? should he have been descending? should we have been descending? should you have been descending? should they have been descending?

Interro-negative form

Simple form	V-ing form
shouldn't I descend? shouldn't you descend? shouldn't he descend? shouldn't we descend? shouldn't you descend? shouldn't they descend?	shouldn't I be descending? shouldn't you be descending? shouldn't he be descending? shouldn't we be descending? shouldn't you be descending? shouldn't they be descending?
Perfect	V-ing perfect
shouldn't I have descended? shouldn't you have descended? shouldn't he have descended? shouldn't we have descended? shouldn't you have descended? shouldn't they have descended?	shouldn't I have been descending? shouldn't you have been descending? shouldn't he have been descending? shouldn't we have been descending? shouldn't you have been descending? shouldn't they have been descending?