English verb conjugation
SHOULD DUMB

Regular verb: dumb - dumbed - dumbed

Affirmation

Simple form	V-ing form
I should dumb you should dumb he should dumb we should dumb you should dumb they should dumb	I should be dumbing you should be dumbing he should be dumbing we should be dumbing you should be dumbing they should be dumbing
Perfect	V-ing perfect
I should have dumbed you should have dumbed he should have dumbed we should have dumbed you should have dumbed they should have dumbed	I should have been dumbing you should have been dumbing he should have been dumbing we should have been dumbing you should have been dumbing they should have been dumbing

Negation

Simple form	V-ing form
I should not dumb you should not dumb he should not dumb we should not dumb you should not dumb they should not dumb	I should not be dumbing you should not be dumbing he should not be dumbing we should not be dumbing you should not be dumbing they should not be dumbing
Perfect	V-ing perfect
I should not have dumbed you should not have dumbed he should not have dumbed we should not have dumbed you should not have dumbed they should not have dumbed	I should not have been dumbing you should not have been dumbing he should not have been dumbing we should not have been dumbing you should not have been dumbing they should not have been dumbing

Interrogative form

Simple form	V-ing form
should I dumb? should you dumb? should he dumb? should we dumb? should you dumb? should they dumb?	should I be dumbing? should you be dumbing? should he be dumbing? should we be dumbing? should you be dumbing? should they be dumbing?
Perfect	V-ing perfect
should I have dumbed? should you have dumbed? should he have dumbed? should we have dumbed? should you have dumbed? should they have dumbed?	should I have been dumbing? should you have been dumbing? should he have been dumbing? should we have been dumbing? should you have been dumbing? should they have been dumbing?

Interro-negative form

Simple form	V-ing form
should I not dumb? should you not dumb? should he not dumb? should we not dumb? should you not dumb? should they not dumb?	should I not be dumbing? should you not be dumbing? should he not be dumbing? should we not be dumbing? should you not be dumbing? should they not be dumbing?
Perfect	V-ing perfect
should I not have dumbed? should you not have dumbed? should he not have dumbed? should we not have dumbed? should you not have dumbed? should they not have dumbed?	should I not have been dumbing? should you not have been dumbing? should he not have been dumbing? should we not have been dumbing? should you not have been dumbing? should they not have been dumbing?