I should stratify you should stratify he should stratify we should stratify you should stratify they should stratify
V-ing form
I should be stratifying you should be stratifying he should be stratifying we should be stratifying you should be stratifying they should be stratifying
Perfect
I should have stratified you should have stratified he should have stratified we should have stratified you should have stratified they should have stratified
V-ing perfect
I should have been stratifying you should have been stratifying he should have been stratifying we should have been stratifying you should have been stratifying they should have been stratifying
Negation
Simple form
I should not stratify you should not stratify he should not stratify we should not stratify you should not stratify they should not stratify
V-ing form
I should not be stratifying you should not be stratifying he should not be stratifying we should not be stratifying you should not be stratifying they should not be stratifying
Perfect
I should not have stratified you should not have stratified he should not have stratified we should not have stratified you should not have stratified they should not have stratified
V-ing perfect
I should not have been stratifying you should not have been stratifying he should not have been stratifying we should not have been stratifying you should not have been stratifying they should not have been stratifying
Interrogative form
Simple form
should I stratify? should you stratify? should he stratify? should we stratify? should you stratify? should they stratify?
V-ing form
should I be stratifying? should you be stratifying? should he be stratifying? should we be stratifying? should you be stratifying? should they be stratifying?
Perfect
should I have stratified? should you have stratified? should he have stratified? should we have stratified? should you have stratified? should they have stratified?
V-ing perfect
should I have been stratifying? should you have been stratifying? should he have been stratifying? should we have been stratifying? should you have been stratifying? should they have been stratifying?
Interro-negative form
Simple form
should I not stratify? should you not stratify? should he not stratify? should we not stratify? should you not stratify? should they not stratify?
V-ing form
should I not be stratifying? should you not be stratifying? should he not be stratifying? should we not be stratifying? should you not be stratifying? should they not be stratifying?
Perfect
should I not have stratified? should you not have stratified? should he not have stratified? should we not have stratified? should you not have stratified? should they not have stratified?
V-ing perfect
should I not have been stratifying? should you not have been stratifying? should he not have been stratifying? should we not have been stratifying? should you not have been stratifying? should they not have been stratifying?