English verb conjugation
SHOULD LEAVEN

Regular verb: leaven - leavened - leavened

Affirmation

Simple form	V-ing form
I'd leaven you'd leaven she'd leaven we'd leaven you'd leaven they'd leaven	I'd be leavening you'd be leavening she'd be leavening we'd be leavening you'd be leavening they'd be leavening
Perfect	V-ing perfect
I should've leavened you should've leavened she should've leavened we should've leavened you should've leavened they should've leavened	I should've been leavening you should've been leavening she should've been leavening we should've been leavening you should've been leavening they should've been leavening

Negation

Simple form	V-ing form
I shouldn't leaven you shouldn't leaven she shouldn't leaven we shouldn't leaven you shouldn't leaven they shouldn't leaven	I shouldn't be leavening you shouldn't be leavening she shouldn't be leavening we shouldn't be leavening you shouldn't be leavening they shouldn't be leavening
Perfect	V-ing perfect
I shouldn't have leavened you shouldn't have leavened she shouldn't have leavened we shouldn't have leavened you shouldn't have leavened they shouldn't have leavened	I shouldn't have been leavening you shouldn't have been leavening she shouldn't have been leavening we shouldn't have been leavening you shouldn't have been leavening they shouldn't have been leavening

Interrogative form

Simple form	V-ing form
should I leaven? should you leaven? should she leaven? should we leaven? should you leaven? should they leaven?	should I be leavening? should you be leavening? should she 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 she 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 she 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
shouldn't I leaven? shouldn't you leaven? shouldn't she leaven? shouldn't we leaven? shouldn't you leaven? shouldn't they leaven?	shouldn't I be leavening? shouldn't you be leavening? shouldn't she be leavening? shouldn't we be leavening? shouldn't you be leavening? shouldn't they be leavening?
Perfect	V-ing perfect
shouldn't I have leavened? shouldn't you have leavened? shouldn't she have leavened? shouldn't we have leavened? shouldn't you have leavened? shouldn't they have leavened?	shouldn't I have been leavening? shouldn't you have been leavening? shouldn't she have been leavening? shouldn't we have been leavening? shouldn't you have been leavening? shouldn't they have been leavening?