I ought to inquire you ought to inquire she ought to inquire we ought to inquire you ought to inquire they ought to inquire
V-ing form
I ought to be inquiring you ought to be inquiring she ought to be inquiring we ought to be inquiring you ought to be inquiring they ought to be inquiring
Perfect
I ought to have inquired you ought to have inquired she ought to have inquired we ought to have inquired you ought to have inquired they ought to have inquired
V-ing perfect
I ought to have been inquiring you ought to have been inquiring she ought to have been inquiring we ought to have been inquiring you ought to have been inquiring they ought to have been inquiring
Negation
Simple form
I ought not to inquire you ought not to inquire she ought not to inquire we ought not to inquire you ought not to inquire they ought not to inquire
V-ing form
I ought not to inquiring you ought not to inquiring she ought not to inquiring we ought not to inquiring you ought not to inquiring they ought not to inquiring
Perfect
I ought not to have inquired you ought not to have inquired she ought not to have inquired we ought not to have inquired you ought not to have inquired they ought not to have inquired
V-ing perfect
I ought not to have been inquiring you ought not to have been inquiring she ought not to have been inquiring we ought not to have been inquiring you ought not to have been inquiring they ought not to have been inquiring
Interrogative form
Simple form
ought to I inquire? ought to you inquire? ought to she inquire? ought to we inquire? ought to you inquire? ought to they inquire?
V-ing form
ought to I be inquiring? ought to you be inquiring? ought to she be inquiring? ought to we be inquiring? ought to you be inquiring? ought to they be inquiring?
Perfect
ought to I have inquired? ought to you have inquired? ought to she have inquired? ought to we have inquired? ought to you have inquired? ought to they have inquired?
V-ing perfect
ought to I have been inquiring? ought to you have been inquiring? ought to she have been inquiring? ought to we have been inquiring? ought to you have been inquiring? ought to they have been inquiring?
Interro-negative form
Simple form
ought I not to inquire? ought you not to inquire? ought she not to inquire? ought we not to inquire? ought you not to inquire? ought they not to inquire?
V-ing form
ought I not to be inquiring? ought you not to be inquiring? ought she not to be inquiring? ought we not to be inquiring? ought you not to be inquiring? ought they not to be inquiring?
Perfect
ought I not to have inquired? ought you not to have inquired? ought she not to have inquired? ought we not to have inquired? ought you not to have inquired? ought they not to have inquired?
V-ing perfect
ought I not to have been inquiring? ought you not to have been inquiring? ought she not to have been inquiring? ought we not to have been inquiring? ought you not to have been inquiring? ought they not to have been inquiring?