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