I'd be thumb-indexing you'd be thumb-indexing he'd be thumb-indexing we'd be thumb-indexing you'd be thumb-indexing they'd be thumb-indexing
Perfect
I should've thumb-indexed you should've thumb-indexed he should've thumb-indexed we should've thumb-indexed you should've thumb-indexed they should've thumb-indexed
V-ing perfect
I should've been thumb-indexing you should've been thumb-indexing he should've been thumb-indexing we should've been thumb-indexing you should've been thumb-indexing they should've been thumb-indexing
Negation
Simple form
I shouldn't thumb-index you shouldn't thumb-index he shouldn't thumb-index we shouldn't thumb-index you shouldn't thumb-index they shouldn't thumb-index
V-ing form
I shouldn't be thumb-indexing you shouldn't be thumb-indexing he shouldn't be thumb-indexing we shouldn't be thumb-indexing you shouldn't be thumb-indexing they shouldn't be thumb-indexing
Perfect
I shouldn't have thumb-indexed you shouldn't have thumb-indexed he shouldn't have thumb-indexed we shouldn't have thumb-indexed you shouldn't have thumb-indexed they shouldn't have thumb-indexed
V-ing perfect
I shouldn't have been thumb-indexing you shouldn't have been thumb-indexing he shouldn't have been thumb-indexing we shouldn't have been thumb-indexing you shouldn't have been thumb-indexing they shouldn't have been thumb-indexing
Interrogative form
Simple form
should I thumb-index? should you thumb-index? should he thumb-index? should we thumb-index? should you thumb-index? should they thumb-index?
V-ing form
should I be thumb-indexing? should you be thumb-indexing? should he be thumb-indexing? should we be thumb-indexing? should you be thumb-indexing? should they be thumb-indexing?
Perfect
should I have thumb-indexed? should you have thumb-indexed? should he have thumb-indexed? should we have thumb-indexed? should you have thumb-indexed? should they have thumb-indexed?
V-ing perfect
should I have been thumb-indexing? should you have been thumb-indexing? should he have been thumb-indexing? should we have been thumb-indexing? should you have been thumb-indexing? should they have been thumb-indexing?
Interro-negative form
Simple form
shouldn't I thumb-index? shouldn't you thumb-index? shouldn't he thumb-index? shouldn't we thumb-index? shouldn't you thumb-index? shouldn't they thumb-index?
V-ing form
shouldn't I be thumb-indexing? shouldn't you be thumb-indexing? shouldn't he be thumb-indexing? shouldn't we be thumb-indexing? shouldn't you be thumb-indexing? shouldn't they be thumb-indexing?
Perfect
shouldn't I have thumb-indexed? shouldn't you have thumb-indexed? shouldn't he have thumb-indexed? shouldn't we have thumb-indexed? shouldn't you have thumb-indexed? shouldn't they have thumb-indexed?
V-ing perfect
shouldn't I have been thumb-indexing? shouldn't you have been thumb-indexing? shouldn't he have been thumb-indexing? shouldn't we have been thumb-indexing? shouldn't you have been thumb-indexing? shouldn't they have been thumb-indexing?