I should bubble you should bubble he should bubble we should bubble you should bubble they should bubble
V-ing form
I should be bubbling you should be bubbling he should be bubbling we should be bubbling you should be bubbling they should be bubbling
Perfect
I should have bubbled you should have bubbled he should have bubbled we should have bubbled you should have bubbled they should have bubbled
V-ing perfect
I should have been bubbling you should have been bubbling he should have been bubbling we should have been bubbling you should have been bubbling they should have been bubbling
Negation
Simple form
I should not bubble you should not bubble he should not bubble we should not bubble you should not bubble they should not bubble
V-ing form
I should not be bubbling you should not be bubbling he should not be bubbling we should not be bubbling you should not be bubbling they should not be bubbling
Perfect
I should not have bubbled you should not have bubbled he should not have bubbled we should not have bubbled you should not have bubbled they should not have bubbled
V-ing perfect
I should not have been bubbling you should not have been bubbling he should not have been bubbling we should not have been bubbling you should not have been bubbling they should not have been bubbling
Interrogative form
Simple form
should I bubble? should you bubble? should he bubble? should we bubble? should you bubble? should they bubble?
V-ing form
should I be bubbling? should you be bubbling? should he be bubbling? should we be bubbling? should you be bubbling? should they be bubbling?
Perfect
should I have bubbled? should you have bubbled? should he have bubbled? should we have bubbled? should you have bubbled? should they have bubbled?
V-ing perfect
should I have been bubbling? should you have been bubbling? should he have been bubbling? should we have been bubbling? should you have been bubbling? should they have been bubbling?
Interro-negative form
Simple form
should I not bubble? should you not bubble? should he not bubble? should we not bubble? should you not bubble? should they not bubble?
V-ing form
should I not be bubbling? should you not be bubbling? should he not be bubbling? should we not be bubbling? should you not be bubbling? should they not be bubbling?
Perfect
should I not have bubbled? should you not have bubbled? should he not have bubbled? should we not have bubbled? should you not have bubbled? should they not have bubbled?
V-ing perfect
should I not have been bubbling? should you not have been bubbling? should he not have been bubbling? should we not have been bubbling? should you not have been bubbling? should they not have been bubbling?