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
he 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
he 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
he 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
he 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 ought not to attest
you ought not to attest
he ought not to attest
we ought not to attest
you ought not to attest
they ought not to attest 	I ought not to attesting
you ought not to attesting
he ought not to attesting
we ought not to attesting
you ought not to attesting
they ought not to attesting	I ought not to have attested
you ought not to have attested
he ought not to have attested
we ought not to have attested
you ought not to have attested
they ought not to have attested	I ought not to have been attesting
you ought not to have been attesting
he ought not to have been attesting
we ought not to have been attesting
you ought not to have been attesting
they ought not 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 he 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 he 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 he 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 he 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 	
ought I not to attest?
ought you not to attest?
ought he not to attest?
ought we not to attest?
ought you not to attest?
ought they not to attest? 	ought I not to be attesting?
ought you not to be attesting?
ought he not to be attesting?
ought we not to be attesting?
ought you not to be attesting?
ought they not to be attesting? 	ought I not to have attested?
ought you not to have attested?
ought he not to have attested?
ought we not to have attested?
ought you not to have attested?
ought they not to have attested? 	ought I not to have been attesting?
ought you not to have been attesting?
ought he not to have been attesting?
ought we not to have been attesting?
ought you not to have been attesting?
ought they not to have been attesting?