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