I'd be gathering you'd be gathering he'd be gathering we'd be gathering you'd be gathering they'd be gathering
Perfect
I should've gathered you should've gathered he should've gathered we should've gathered you should've gathered they should've gathered
V-ing perfect
I should've been gathering you should've been gathering he should've been gathering we should've been gathering you should've been gathering they should've been gathering
Negation
Simple form
I shouldn't gather you shouldn't gather he shouldn't gather we shouldn't gather you shouldn't gather they shouldn't gather
V-ing form
I shouldn't be gathering you shouldn't be gathering he shouldn't be gathering we shouldn't be gathering you shouldn't be gathering they shouldn't be gathering
Perfect
I shouldn't have gathered you shouldn't have gathered he shouldn't have gathered we shouldn't have gathered you shouldn't have gathered they shouldn't have gathered
V-ing perfect
I shouldn't have been gathering you shouldn't have been gathering he shouldn't have been gathering we shouldn't have been gathering you shouldn't have been gathering they shouldn't have been gathering
Interrogative form
Simple form
should I gather? should you gather? should he gather? should we gather? should you gather? should they gather?
V-ing form
should I be gathering? should you be gathering? should he be gathering? should we be gathering? should you be gathering? should they be gathering?
Perfect
should I have gathered? should you have gathered? should he have gathered? should we have gathered? should you have gathered? should they have gathered?
V-ing perfect
should I have been gathering? should you have been gathering? should he have been gathering? should we have been gathering? should you have been gathering? should they have been gathering?
Interro-negative form
Simple form
shouldn't I gather? shouldn't you gather? shouldn't he gather? shouldn't we gather? shouldn't you gather? shouldn't they gather?
V-ing form
shouldn't I be gathering? shouldn't you be gathering? shouldn't he be gathering? shouldn't we be gathering? shouldn't you be gathering? shouldn't they be gathering?
Perfect
shouldn't I have gathered? shouldn't you have gathered? shouldn't he have gathered? shouldn't we have gathered? shouldn't you have gathered? shouldn't they have gathered?
V-ing perfect
shouldn't I have been gathering? shouldn't you have been gathering? shouldn't he have been gathering? shouldn't we have been gathering? shouldn't you have been gathering? shouldn't they have been gathering?