ought to ferment
Regular verb: ferment - fermented- fermented

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to ferment
you ought to ferment
she ought to ferment
we ought to ferment
you ought to ferment
they ought to ferment 	I ought to be fermenting
you ought to be fermenting
she ought to be fermenting
we ought to be fermenting
you ought to be fermenting
they ought to be fermenting	I ought to have fermented
you ought to have fermented
she ought to have fermented
we ought to have fermented
you ought to have fermented
they ought to have fermented	I ought to have been fermenting
you ought to have been fermenting
she ought to have been fermenting
we ought to have been fermenting
you ought to have been fermenting
they ought to have been fermenting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to ferment
you oughtn't to ferment
she oughtn't to ferment
we oughtn't to ferment
you oughtn't to ferment
they oughtn't to ferment 	I oughtn't to be fermenting
you oughtn't to be fermenting
she oughtn't to be fermenting
we oughtn't to be fermenting
you oughtn't to be fermenting
they oughtn't to be fermenting	I oughtn't to have fermented
you oughtn't to have fermented
she oughtn't to have fermented
we oughtn't to have fermented
you oughtn't to have fermented
they oughtn't to have fermented	I oughtn't to have been fermenting
you oughtn't to have been fermenting
she oughtn't to have been fermenting
we oughtn't to have been fermenting
you oughtn't to have been fermenting
they oughtn't to have been fermenting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I ferment?
ought to you ferment?
ought to she ferment?
ought to we ferment?
ought to you ferment?
ought to they ferment? 	ought to I be fermenting?
ought to you be fermenting?
ought to she be fermenting?
ought to we be fermenting?
ought to you be fermenting?
ought to they be fermenting? 	ought to I have fermented?
ought to you have fermented?
ought to she have fermented?
ought to we have fermented?
ought to you have fermented?
ought to they have fermented? 	ought to I have been fermenting?
ought to you have been fermenting?
ought to she have been fermenting?
ought to we have been fermenting?
ought to you have been fermenting?
ought to they have been fermenting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to ferment?
oughtn't you to ferment?
oughtn't she to ferment?
oughtn't we to ferment?
oughtn't you to ferment?
oughtn't they to ferment? 	oughtn't I to be fermenting?
oughtn't you to be fermenting?
oughtn't she to be fermenting?
oughtn't we to be fermenting?
oughtn't you to be fermenting?
oughtn't they to be fermenting? 	oughtn't I to have fermented?
oughtn't you to have fermented?
oughtn't she to have fermented?
oughtn't we to have fermented?
oughtn't you to have fermented?
oughtn't they to have fermented? 	oughtn't I to have been fermenting?
oughtn't you to have been fermenting?
oughtn't she to have been fermenting?
oughtn't we to have been fermenting?
oughtn't you to have been fermenting?
oughtn't they to have been fermenting?