ought to acidify
Regular verb: acidify - acidified- acidified

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to acidify
you ought to acidify
she ought to acidify
we ought to acidify
you ought to acidify
they ought to acidify 	I ought to be acidifying
you ought to be acidifying
she ought to be acidifying
we ought to be acidifying
you ought to be acidifying
they ought to be acidifying	I ought to have acidified
you ought to have acidified
she ought to have acidified
we ought to have acidified
you ought to have acidified
they ought to have acidified	I ought to have been acidifying
you ought to have been acidifying
she ought to have been acidifying
we ought to have been acidifying
you ought to have been acidifying
they ought to have been acidifying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to acidify
you oughtn't to acidify
she oughtn't to acidify
we oughtn't to acidify
you oughtn't to acidify
they oughtn't to acidify 	I oughtn't to be acidifying
you oughtn't to be acidifying
she oughtn't to be acidifying
we oughtn't to be acidifying
you oughtn't to be acidifying
they oughtn't to be acidifying	I oughtn't to have acidified
you oughtn't to have acidified
she oughtn't to have acidified
we oughtn't to have acidified
you oughtn't to have acidified
they oughtn't to have acidified	I oughtn't to have been acidifying
you oughtn't to have been acidifying
she oughtn't to have been acidifying
we oughtn't to have been acidifying
you oughtn't to have been acidifying
they oughtn't to have been acidifying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I acidify?
ought to you acidify?
ought to she acidify?
ought to we acidify?
ought to you acidify?
ought to they acidify? 	ought to I be acidifying?
ought to you be acidifying?
ought to she be acidifying?
ought to we be acidifying?
ought to you be acidifying?
ought to they be acidifying? 	ought to I have acidified?
ought to you have acidified?
ought to she have acidified?
ought to we have acidified?
ought to you have acidified?
ought to they have acidified? 	ought to I have been acidifying?
ought to you have been acidifying?
ought to she have been acidifying?
ought to we have been acidifying?
ought to you have been acidifying?
ought to they have been acidifying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to acidify?
oughtn't you to acidify?
oughtn't she to acidify?
oughtn't we to acidify?
oughtn't you to acidify?
oughtn't they to acidify? 	oughtn't I to be acidifying?
oughtn't you to be acidifying?
oughtn't she to be acidifying?
oughtn't we to be acidifying?
oughtn't you to be acidifying?
oughtn't they to be acidifying? 	oughtn't I to have acidified?
oughtn't you to have acidified?
oughtn't she to have acidified?
oughtn't we to have acidified?
oughtn't you to have acidified?
oughtn't they to have acidified? 	oughtn't I to have been acidifying?
oughtn't you to have been acidifying?
oughtn't she to have been acidifying?
oughtn't we to have been acidifying?
oughtn't you to have been acidifying?
oughtn't they to have been acidifying?