ought to attest
Regular verb: attest - attested- attested

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to attest
you ought to attest
she ought to attest
we ought to attest
you ought to attest
they ought to attest 	I ought to be attesting
you ought to be attesting
she ought to be attesting
we ought to be attesting
you ought to be attesting
they ought to be attesting	I ought to have attested
you ought to have attested
she ought to have attested
we ought to have attested
you ought to have attested
they ought to have attested	I ought to have been attesting
you ought to have been attesting
she ought to have been attesting
we ought to have been attesting
you ought to have been attesting
they ought to have been attesting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to attest
you oughtn't to attest
she oughtn't to attest
we oughtn't to attest
you oughtn't to attest
they oughtn't to attest 	I oughtn't to be attesting
you oughtn't to be attesting
she oughtn't to be attesting
we oughtn't to be attesting
you oughtn't to be attesting
they oughtn't to be attesting	I oughtn't to have attested
you oughtn't to have attested
she oughtn't to have attested
we oughtn't to have attested
you oughtn't to have attested
they oughtn't to have attested	I oughtn't to have been attesting
you oughtn't to have been attesting
she oughtn't to have been attesting
we oughtn't to have been attesting
you oughtn't to have been attesting
they oughtn't to have been attesting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I attest?
ought to you attest?
ought to she attest?
ought to we attest?
ought to you attest?
ought to they attest? 	ought to I be attesting?
ought to you be attesting?
ought to she be attesting?
ought to we be attesting?
ought to you be attesting?
ought to they be attesting? 	ought to I have attested?
ought to you have attested?
ought to she have attested?
ought to we have attested?
ought to you have attested?
ought to they have attested? 	ought to I have been attesting?
ought to you have been attesting?
ought to she have been attesting?
ought to we have been attesting?
ought to you have been attesting?
ought to they have been attesting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to attest?
oughtn't you to attest?
oughtn't she to attest?
oughtn't we to attest?
oughtn't you to attest?
oughtn't they to attest? 	oughtn't I to be attesting?
oughtn't you to be attesting?
oughtn't she to be attesting?
oughtn't we to be attesting?
oughtn't you to be attesting?
oughtn't they to be attesting? 	oughtn't I to have attested?
oughtn't you to have attested?
oughtn't she to have attested?
oughtn't we to have attested?
oughtn't you to have attested?
oughtn't they to have attested? 	oughtn't I to have been attesting?
oughtn't you to have been attesting?
oughtn't she to have been attesting?
oughtn't we to have been attesting?
oughtn't you to have been attesting?
oughtn't they to have been attesting?