I ought to attest you ought to attest she ought to attest we ought to attest you ought to attest they ought to attest
V-ing form
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
Perfect
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
V-ing perfect
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
I ought not to attest you ought not to attest she ought not to attest we ought not to attest you ought not to attest they ought not to attest
V-ing form
I ought not to attesting you ought not to attesting she ought not to attesting we ought not to attesting you ought not to attesting they ought not to attesting
Perfect
I ought not to have attested you ought not to have attested she ought not to have attested we ought not to have attested you ought not to have attested they ought not to have attested
V-ing perfect
I ought not to have been attesting you ought not to have been attesting she 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
ought to I attest? ought to you attest? ought to she attest? ought to we attest? ought to you attest? ought to they attest?
V-ing form
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?
Perfect
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?
V-ing perfect
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
ought I not to attest? ought you not to attest? ought she not to attest? ought we not to attest? ought you not to attest? ought they not to attest?
V-ing form
ought I not to be attesting? ought you not to be attesting? ought she not to be attesting? ought we not to be attesting? ought you not to be attesting? ought they not to be attesting?
Perfect
ought I not to have attested? ought you not to have attested? ought she not to have attested? ought we not to have attested? ought you not to have attested? ought they not to have attested?
V-ing perfect
ought I not to have been attesting? ought you not to have been attesting? ought she 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?