English verb conjugation
SHOULD SPUTTER

Regular verb: sputter - sputtered - sputtered

Affirmation

Simple form	V-ing form
I'd sputter you'd sputter he'd sputter we'd sputter you'd sputter they'd sputter	I'd be sputtering you'd be sputtering he'd be sputtering we'd be sputtering you'd be sputtering they'd be sputtering
Perfect	V-ing perfect
I should've sputtered you should've sputtered he should've sputtered we should've sputtered you should've sputtered they should've sputtered	I should've been sputtering you should've been sputtering he should've been sputtering we should've been sputtering you should've been sputtering they should've been sputtering

Negation

Simple form	V-ing form
I shouldn't sputter you shouldn't sputter he shouldn't sputter we shouldn't sputter you shouldn't sputter they shouldn't sputter	I shouldn't be sputtering you shouldn't be sputtering he shouldn't be sputtering we shouldn't be sputtering you shouldn't be sputtering they shouldn't be sputtering
Perfect	V-ing perfect
I shouldn't have sputtered you shouldn't have sputtered he shouldn't have sputtered we shouldn't have sputtered you shouldn't have sputtered they shouldn't have sputtered	I shouldn't have been sputtering you shouldn't have been sputtering he shouldn't have been sputtering we shouldn't have been sputtering you shouldn't have been sputtering they shouldn't have been sputtering

Interrogative form

Simple form	V-ing form
should I sputter? should you sputter? should he sputter? should we sputter? should you sputter? should they sputter?	should I be sputtering? should you be sputtering? should he be sputtering? should we be sputtering? should you be sputtering? should they be sputtering?
Perfect	V-ing perfect
should I have sputtered? should you have sputtered? should he have sputtered? should we have sputtered? should you have sputtered? should they have sputtered?	should I have been sputtering? should you have been sputtering? should he have been sputtering? should we have been sputtering? should you have been sputtering? should they have been sputtering?

Interro-negative form

Simple form	V-ing form
shouldn't I sputter? shouldn't you sputter? shouldn't he sputter? shouldn't we sputter? shouldn't you sputter? shouldn't they sputter?	shouldn't I be sputtering? shouldn't you be sputtering? shouldn't he be sputtering? shouldn't we be sputtering? shouldn't you be sputtering? shouldn't they be sputtering?
Perfect	V-ing perfect
shouldn't I have sputtered? shouldn't you have sputtered? shouldn't he have sputtered? shouldn't we have sputtered? shouldn't you have sputtered? shouldn't they have sputtered?	shouldn't I have been sputtering? shouldn't you have been sputtering? shouldn't he have been sputtering? shouldn't we have been sputtering? shouldn't you have been sputtering? shouldn't they have been sputtering?