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