English verb conjugation
SHOULD CLUSTER

Regular verb: cluster - clustered - clustered

Affirmation

Simple form	V-ing form
I'd cluster you'd cluster he'd cluster we'd cluster you'd cluster they'd cluster	I'd be clustering you'd be clustering he'd be clustering we'd be clustering you'd be clustering they'd be clustering
Perfect	V-ing perfect
I should've clustered you should've clustered he should've clustered we should've clustered you should've clustered they should've clustered	I should've been clustering you should've been clustering he should've been clustering we should've been clustering you should've been clustering they should've been clustering

Negation

Simple form	V-ing form
I shouldn't cluster you shouldn't cluster he shouldn't cluster we shouldn't cluster you shouldn't cluster they shouldn't cluster	I shouldn't be clustering you shouldn't be clustering he shouldn't be clustering we shouldn't be clustering you shouldn't be clustering they shouldn't be clustering
Perfect	V-ing perfect
I shouldn't have clustered you shouldn't have clustered he shouldn't have clustered we shouldn't have clustered you shouldn't have clustered they shouldn't have clustered	I shouldn't have been clustering you shouldn't have been clustering he shouldn't have been clustering we shouldn't have been clustering you shouldn't have been clustering they shouldn't have been clustering

Interrogative form

Simple form	V-ing form
should I cluster? should you cluster? should he cluster? should we cluster? should you cluster? should they cluster?	should I be clustering? should you be clustering? should he be clustering? should we be clustering? should you be clustering? should they be clustering?
Perfect	V-ing perfect
should I have clustered? should you have clustered? should he have clustered? should we have clustered? should you have clustered? should they have clustered?	should I have been clustering? should you have been clustering? should he have been clustering? should we have been clustering? should you have been clustering? should they have been clustering?

Interro-negative form

Simple form	V-ing form
shouldn't I cluster? shouldn't you cluster? shouldn't he cluster? shouldn't we cluster? shouldn't you cluster? shouldn't they cluster?	shouldn't I be clustering? shouldn't you be clustering? shouldn't he be clustering? shouldn't we be clustering? shouldn't you be clustering? shouldn't they be clustering?
Perfect	V-ing perfect
shouldn't I have clustered? shouldn't you have clustered? shouldn't he have clustered? shouldn't we have clustered? shouldn't you have clustered? shouldn't they have clustered?	shouldn't I have been clustering? shouldn't you have been clustering? shouldn't he have been clustering? shouldn't we have been clustering? shouldn't you have been clustering? shouldn't they have been clustering?