English verb conjugation
SHOULD HUM

Regular verb: hum - humed - humed

Affirmation

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

Negation

Simple form	V-ing form
I should not hum you should not hum he should not hum we should not hum you should not hum they should not hum	I should not be huming you should not be huming he should not be huming we should not be huming you should not be huming they should not be huming
Perfect	V-ing perfect
I should not have humed you should not have humed he should not have humed we should not have humed you should not have humed they should not have humed	I should not have been huming you should not have been huming he should not have been huming we should not have been huming you should not have been huming they should not 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
should I not hum? should you not hum? should he not hum? should we not hum? should you not hum? should they not hum?	should I not be huming? should you not be huming? should he not be huming? should we not be huming? should you not be huming? should they not be huming?
Perfect	V-ing perfect
should I not have humed? should you not have humed? should he not have humed? should we not have humed? should you not have humed? should they not have humed?	should I not have been huming? should you not have been huming? should he not have been huming? should we not have been huming? should you not have been huming? should they not have been huming?