I should learn you should learn he should learn we should learn you should learn they should learn
V-ing form
I should be learning you should be learning he should be learning we should be learning you should be learning they should be learning
Perfect
I should have learned, learnt you should have learned, learnt he should have learned, learnt we should have learned, learnt you should have learned, learnt they should have learned, learnt
V-ing perfect
I should have been learning you should have been learning he should have been learning we should have been learning you should have been learning they should have been learning
Negation
Simple form
I should not learn you should not learn he should not learn we should not learn you should not learn they should not learn
V-ing form
I should not be learning you should not be learning he should not be learning we should not be learning you should not be learning they should not be learning
Perfect
I should not have learned, learnt you should not have learned, learnt he should not have learned, learnt we should not have learned, learnt you should not have learned, learnt they should not have learned, learnt
V-ing perfect
I should not have been learning you should not have been learning he should not have been learning we should not have been learning you should not have been learning they should not have been learning
Interrogative form
Simple form
should I learn? should you learn? should he learn? should we learn? should you learn? should they learn?
V-ing form
should I be learning? should you be learning? should he 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 he 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 he have been learning? should we have been learning? should you have been learning? should they have been learning?
Interro-negative form
Simple form
should I not learn? should you not learn? should he not learn? should we not learn? should you not learn? should they not learn?
V-ing form
should I not be learning? should you not be learning? should he not be learning? should we not be learning? should you not be learning? should they not be learning?
Perfect
should I not have learned, learnt? should you not have learned, learnt? should he not have learned, learnt? should we not have learned, learnt? should you not have learned, learnt? should they not have learned, learnt?
V-ing perfect
should I not have been learning? should you not have been learning? should he not have been learning? should we not have been learning? should you not have been learning? should they not have been learning?