ought to leaven
Regular verb: leaven - leavened- leavened

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to leaven
you oughtn't to leaven
he oughtn't to leaven
we oughtn't to leaven
you oughtn't to leaven
they oughtn't to leaven 	I oughtn't to be leavening
you oughtn't to be leavening
he oughtn't to be leavening
we oughtn't to be leavening
you oughtn't to be leavening
they oughtn't to be leavening	I oughtn't to have leavened
you oughtn't to have leavened
he oughtn't to have leavened
we oughtn't to have leavened
you oughtn't to have leavened
they oughtn't to have leavened	I oughtn't to have been leavening
you oughtn't to have been leavening
he oughtn't to have been leavening
we oughtn't to have been leavening
you oughtn't to have been leavening
they oughtn't to have been leavening	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to leaven?
oughtn't you to leaven?
oughtn't he to leaven?
oughtn't we to leaven?
oughtn't you to leaven?
oughtn't they to leaven? 	oughtn't I to be leavening?
oughtn't you to be leavening?
oughtn't he to be leavening?
oughtn't we to be leavening?
oughtn't you to be leavening?
oughtn't they to be leavening? 	oughtn't I to have leavened?
oughtn't you to have leavened?
oughtn't he to have leavened?
oughtn't we to have leavened?
oughtn't you to have leavened?
oughtn't they to have leavened? 	oughtn't I to have been leavening?
oughtn't you to have been leavening?
oughtn't he to have been leavening?
oughtn't we to have been leavening?
oughtn't you to have been leavening?
oughtn't they to have been leavening?