I'd be learning you'd be learning she'd be learning we'd be learning you'd be learning they'd be learning
Perfect
I should've learned, learnt you should've learned, learnt she should've learned, learnt we should've learned, learnt you should've learned, learnt they should've learned, learnt
V-ing perfect
I should've been learning you should've been learning she should've been learning we should've been learning you should've been learning they should've been learning
Negation
Simple form
I shouldn't learn you shouldn't learn she shouldn't learn we shouldn't learn you shouldn't learn they shouldn't learn
V-ing form
I shouldn't be learning you shouldn't be learning she shouldn't be learning we shouldn't be learning you shouldn't be learning they shouldn't be learning
Perfect
I shouldn't have learned, learnt you shouldn't have learned, learnt she shouldn't have learned, learnt we shouldn't have learned, learnt you shouldn't have learned, learnt they shouldn't have learned, learnt
V-ing perfect
I shouldn't have been learning you shouldn't have been learning she shouldn't have been learning we shouldn't have been learning you shouldn't have been learning they shouldn't have been learning
Interrogative form
Simple form
should I learn? should you learn? should she learn? should we learn? should you learn? should they learn?
V-ing form
should I be learning? should you be learning? should she be learning? should we be learning? should you be learning? should they be learning?
Perfect
should I have learned, learnt? should you have learned, learnt? should she have learned, learnt? should we have learned, learnt? should you have learned, learnt? should they have learned, learnt?
V-ing perfect
should I have been learning? should you have been learning? should she have been learning? should we have been learning? should you have been learning? should they have been learning?
Interro-negative form
Simple form
shouldn't I learn? shouldn't you learn? shouldn't she learn? shouldn't we learn? shouldn't you learn? shouldn't they learn?
V-ing form
shouldn't I be learning? shouldn't you be learning? shouldn't she be learning? shouldn't we be learning? shouldn't you be learning? shouldn't they be learning?
Perfect
shouldn't I have learned, learnt? shouldn't you have learned, learnt? shouldn't she have learned, learnt? shouldn't we have learned, learnt? shouldn't you have learned, learnt? shouldn't they have learned, learnt?
V-ing perfect
shouldn't I have been learning? shouldn't you have been learning? shouldn't she have been learning? shouldn't we have been learning? shouldn't you have been learning? shouldn't they have been learning?