I'd be double-tonguing you'd be double-tonguing she'd be double-tonguing we'd be double-tonguing you'd be double-tonguing they'd be double-tonguing
Perfect
I should've double-tongued you should've double-tongued she should've double-tongued we should've double-tongued you should've double-tongued they should've double-tongued
V-ing perfect
I should've been double-tonguing you should've been double-tonguing she should've been double-tonguing we should've been double-tonguing you should've been double-tonguing they should've been double-tonguing
Negation
Simple form
I shouldn't double-tongue you shouldn't double-tongue she shouldn't double-tongue we shouldn't double-tongue you shouldn't double-tongue they shouldn't double-tongue
V-ing form
I shouldn't be double-tonguing you shouldn't be double-tonguing she shouldn't be double-tonguing we shouldn't be double-tonguing you shouldn't be double-tonguing they shouldn't be double-tonguing
Perfect
I shouldn't have double-tongued you shouldn't have double-tongued she shouldn't have double-tongued we shouldn't have double-tongued you shouldn't have double-tongued they shouldn't have double-tongued
V-ing perfect
I shouldn't have been double-tonguing you shouldn't have been double-tonguing she shouldn't have been double-tonguing we shouldn't have been double-tonguing you shouldn't have been double-tonguing they shouldn't have been double-tonguing
Interrogative form
Simple form
should I double-tongue? should you double-tongue? should she double-tongue? should we double-tongue? should you double-tongue? should they double-tongue?
V-ing form
should I be double-tonguing? should you be double-tonguing? should she be double-tonguing? should we be double-tonguing? should you be double-tonguing? should they be double-tonguing?
Perfect
should I have double-tongued? should you have double-tongued? should she have double-tongued? should we have double-tongued? should you have double-tongued? should they have double-tongued?
V-ing perfect
should I have been double-tonguing? should you have been double-tonguing? should she have been double-tonguing? should we have been double-tonguing? should you have been double-tonguing? should they have been double-tonguing?
Interro-negative form
Simple form
shouldn't I double-tongue? shouldn't you double-tongue? shouldn't she double-tongue? shouldn't we double-tongue? shouldn't you double-tongue? shouldn't they double-tongue?
V-ing form
shouldn't I be double-tonguing? shouldn't you be double-tonguing? shouldn't she be double-tonguing? shouldn't we be double-tonguing? shouldn't you be double-tonguing? shouldn't they be double-tonguing?
Perfect
shouldn't I have double-tongued? shouldn't you have double-tongued? shouldn't she have double-tongued? shouldn't we have double-tongued? shouldn't you have double-tongued? shouldn't they have double-tongued?
V-ing perfect
shouldn't I have been double-tonguing? shouldn't you have been double-tonguing? shouldn't she have been double-tonguing? shouldn't we have been double-tonguing? shouldn't you have been double-tonguing? shouldn't they have been double-tonguing?