I should collect you should collect he should collect we should collect you should collect they should collect
V-ing form
I should be collecting you should be collecting he should be collecting we should be collecting you should be collecting they should be collecting
Perfect
I should have collected you should have collected he should have collected we should have collected you should have collected they should have collected
V-ing perfect
I should have been collecting you should have been collecting he should have been collecting we should have been collecting you should have been collecting they should have been collecting
Negation
Simple form
I should not collect you should not collect he should not collect we should not collect you should not collect they should not collect
V-ing form
I should not be collecting you should not be collecting he should not be collecting we should not be collecting you should not be collecting they should not be collecting
Perfect
I should not have collected you should not have collected he should not have collected we should not have collected you should not have collected they should not have collected
V-ing perfect
I should not have been collecting you should not have been collecting he should not have been collecting we should not have been collecting you should not have been collecting they should not have been collecting
Interrogative form
Simple form
should I collect? should you collect? should he collect? should we collect? should you collect? should they collect?
V-ing form
should I be collecting? should you be collecting? should he be collecting? should we be collecting? should you be collecting? should they be collecting?
Perfect
should I have collected? should you have collected? should he have collected? should we have collected? should you have collected? should they have collected?
V-ing perfect
should I have been collecting? should you have been collecting? should he have been collecting? should we have been collecting? should you have been collecting? should they have been collecting?
Interro-negative form
Simple form
should I not collect? should you not collect? should he not collect? should we not collect? should you not collect? should they not collect?
V-ing form
should I not be collecting? should you not be collecting? should he not be collecting? should we not be collecting? should you not be collecting? should they not be collecting?
Perfect
should I not have collected? should you not have collected? should he not have collected? should we not have collected? should you not have collected? should they not have collected?
V-ing perfect
should I not have been collecting? should you not have been collecting? should he not have been collecting? should we not have been collecting? should you not have been collecting? should they not have been collecting?