English verb conjugation
SHOULD LEAVEN

Regular verb: leaven - leavened - leavened

Affirmation

Simple form	V-ing form
I should leaven you should leaven he should leaven we should leaven you should leaven they should leaven	I should be leavening you should be leavening he should be leavening we should be leavening you should be leavening they should be leavening
Perfect	V-ing perfect
I should have leavened you should have leavened he should have leavened we should have leavened you should have leavened they should have leavened	I should have been leavening you should have been leavening he should have been leavening we should have been leavening you should have been leavening they should have been leavening

Negation

Simple form	V-ing form
I should not leaven you should not leaven he should not leaven we should not leaven you should not leaven they should not leaven	I should not be leavening you should not be leavening he should not be leavening we should not be leavening you should not be leavening they should not be leavening
Perfect	V-ing perfect
I should not have leavened you should not have leavened he should not have leavened we should not have leavened you should not have leavened they should not have leavened	I should not have been leavening you should not have been leavening he should not have been leavening we should not have been leavening you should not have been leavening they should not have been leavening

Interrogative form

Simple form	V-ing form
should I leaven? should you leaven? should he leaven? should we leaven? should you leaven? should they leaven?	should I be leavening? should you be leavening? should he be leavening? should we be leavening? should you be leavening? should they be leavening?
Perfect	V-ing perfect
should I have leavened? should you have leavened? should he have leavened? should we have leavened? should you have leavened? should they have leavened?	should I have been leavening? should you have been leavening? should he have been leavening? should we have been leavening? should you have been leavening? should they have been leavening?

Interro-negative form

Simple form	V-ing form
should I not leaven? should you not leaven? should he not leaven? should we not leaven? should you not leaven? should they not leaven?	should I not be leavening? should you not be leavening? should he not be leavening? should we not be leavening? should you not be leavening? should they not be leavening?
Perfect	V-ing perfect
should I not have leavened? should you not have leavened? should he not have leavened? should we not have leavened? should you not have leavened? should they not have leavened?	should I not have been leavening? should you not have been leavening? should he not have been leavening? should we not have been leavening? should you not have been leavening? should they not have been leavening?