English verb conjugation
SHOULD UNBOX

Regular verb: unbox - unboxed - unboxed

Affirmation

Simple form	V-ing form
I'd unbox you'd unbox he'd unbox we'd unbox you'd unbox they'd unbox	I'd be unboxing you'd be unboxing he'd be unboxing we'd be unboxing you'd be unboxing they'd be unboxing
Perfect	V-ing perfect
I should've unboxed you should've unboxed he should've unboxed we should've unboxed you should've unboxed they should've unboxed	I should've been unboxing you should've been unboxing he should've been unboxing we should've been unboxing you should've been unboxing they should've been unboxing

Negation

Simple form	V-ing form
I shouldn't unbox you shouldn't unbox he shouldn't unbox we shouldn't unbox you shouldn't unbox they shouldn't unbox	I shouldn't be unboxing you shouldn't be unboxing he shouldn't be unboxing we shouldn't be unboxing you shouldn't be unboxing they shouldn't be unboxing
Perfect	V-ing perfect
I shouldn't have unboxed you shouldn't have unboxed he shouldn't have unboxed we shouldn't have unboxed you shouldn't have unboxed they shouldn't have unboxed	I shouldn't have been unboxing you shouldn't have been unboxing he shouldn't have been unboxing we shouldn't have been unboxing you shouldn't have been unboxing they shouldn't have been unboxing

Interrogative form

Simple form	V-ing form
should I unbox? should you unbox? should he unbox? should we unbox? should you unbox? should they unbox?	should I be unboxing? should you be unboxing? should he be unboxing? should we be unboxing? should you be unboxing? should they be unboxing?
Perfect	V-ing perfect
should I have unboxed? should you have unboxed? should he have unboxed? should we have unboxed? should you have unboxed? should they have unboxed?	should I have been unboxing? should you have been unboxing? should he have been unboxing? should we have been unboxing? should you have been unboxing? should they have been unboxing?

Interro-negative form

Simple form	V-ing form
shouldn't I unbox? shouldn't you unbox? shouldn't he unbox? shouldn't we unbox? shouldn't you unbox? shouldn't they unbox?	shouldn't I be unboxing? shouldn't you be unboxing? shouldn't he be unboxing? shouldn't we be unboxing? shouldn't you be unboxing? shouldn't they be unboxing?
Perfect	V-ing perfect
shouldn't I have unboxed? shouldn't you have unboxed? shouldn't he have unboxed? shouldn't we have unboxed? shouldn't you have unboxed? shouldn't they have unboxed?	shouldn't I have been unboxing? shouldn't you have been unboxing? shouldn't he have been unboxing? shouldn't we have been unboxing? shouldn't you have been unboxing? shouldn't they have been unboxing?