English verb conjugation
SHOULD HUM

Regular verb: hum - humed - humed

Affirmation

Simple form	V-ing form
I'd hum you'd hum he'd hum we'd hum you'd hum they'd hum	I'd be huming you'd be huming he'd be huming we'd be huming you'd be huming they'd be huming
Perfect	V-ing perfect
I should've humed you should've humed he should've humed we should've humed you should've humed they should've humed	I should've been huming you should've been huming he should've been huming we should've been huming you should've been huming they should've been huming

Negation

Simple form	V-ing form
I shouldn't hum you shouldn't hum he shouldn't hum we shouldn't hum you shouldn't hum they shouldn't hum	I shouldn't be huming you shouldn't be huming he shouldn't be huming we shouldn't be huming you shouldn't be huming they shouldn't be huming
Perfect	V-ing perfect
I shouldn't have humed you shouldn't have humed he shouldn't have humed we shouldn't have humed you shouldn't have humed they shouldn't have humed	I shouldn't have been huming you shouldn't have been huming he shouldn't have been huming we shouldn't have been huming you shouldn't have been huming they shouldn't have been huming

Interrogative form

Simple form	V-ing form
should I hum? should you hum? should he hum? should we hum? should you hum? should they hum?	should I be huming? should you be huming? should he be huming? should we be huming? should you be huming? should they be huming?
Perfect	V-ing perfect
should I have humed? should you have humed? should he have humed? should we have humed? should you have humed? should they have humed?	should I have been huming? should you have been huming? should he have been huming? should we have been huming? should you have been huming? should they have been huming?

Interro-negative form

Simple form	V-ing form
shouldn't I hum? shouldn't you hum? shouldn't he hum? shouldn't we hum? shouldn't you hum? shouldn't they hum?	shouldn't I be huming? shouldn't you be huming? shouldn't he be huming? shouldn't we be huming? shouldn't you be huming? shouldn't they be huming?
Perfect	V-ing perfect
shouldn't I have humed? shouldn't you have humed? shouldn't he have humed? shouldn't we have humed? shouldn't you have humed? shouldn't they have humed?	shouldn't I have been huming? shouldn't you have been huming? shouldn't he have been huming? shouldn't we have been huming? shouldn't you have been huming? shouldn't they have been huming?