English verb conjugation
SHOULD LITTER

Regular verb: litter - littered - littered

Affirmation

Simple form	V-ing form
I'd litter you'd litter he'd litter we'd litter you'd litter they'd litter	I'd be littering you'd be littering he'd be littering we'd be littering you'd be littering they'd be littering
Perfect	V-ing perfect
I should've littered you should've littered he should've littered we should've littered you should've littered they should've littered	I should've been littering you should've been littering he should've been littering we should've been littering you should've been littering they should've been littering

Negation

Simple form	V-ing form
I shouldn't litter you shouldn't litter he shouldn't litter we shouldn't litter you shouldn't litter they shouldn't litter	I shouldn't be littering you shouldn't be littering he shouldn't be littering we shouldn't be littering you shouldn't be littering they shouldn't be littering
Perfect	V-ing perfect
I shouldn't have littered you shouldn't have littered he shouldn't have littered we shouldn't have littered you shouldn't have littered they shouldn't have littered	I shouldn't have been littering you shouldn't have been littering he shouldn't have been littering we shouldn't have been littering you shouldn't have been littering they shouldn't have been littering

Interrogative form

Simple form	V-ing form
should I litter? should you litter? should he litter? should we litter? should you litter? should they litter?	should I be littering? should you be littering? should he be littering? should we be littering? should you be littering? should they be littering?
Perfect	V-ing perfect
should I have littered? should you have littered? should he have littered? should we have littered? should you have littered? should they have littered?	should I have been littering? should you have been littering? should he have been littering? should we have been littering? should you have been littering? should they have been littering?

Interro-negative form

Simple form	V-ing form
shouldn't I litter? shouldn't you litter? shouldn't he litter? shouldn't we litter? shouldn't you litter? shouldn't they litter?	shouldn't I be littering? shouldn't you be littering? shouldn't he be littering? shouldn't we be littering? shouldn't you be littering? shouldn't they be littering?
Perfect	V-ing perfect
shouldn't I have littered? shouldn't you have littered? shouldn't he have littered? shouldn't we have littered? shouldn't you have littered? shouldn't they have littered?	shouldn't I have been littering? shouldn't you have been littering? shouldn't he have been littering? shouldn't we have been littering? shouldn't you have been littering? shouldn't they have been littering?