English verb conjugation
OUGHT TO STRATIFY

Regular verb: stratify - stratified - stratified

Affirmation

Simple form	V-ing form
I ought to stratify you ought to stratify he ought to stratify we ought to stratify you ought to stratify they ought to stratify	I ought to be stratifying you ought to be stratifying he ought to be stratifying we ought to be stratifying you ought to be stratifying they ought to be stratifying
Perfect	V-ing perfect
I ought to have stratified you ought to have stratified he ought to have stratified we ought to have stratified you ought to have stratified they ought to have stratified	I ought to have been stratifying you ought to have been stratifying he ought to have been stratifying we ought to have been stratifying you ought to have been stratifying they ought to have been stratifying

Negation

Simple form	V-ing form
I ought not to stratify you ought not to stratify he ought not to stratify we ought not to stratify you ought not to stratify they ought not to stratify	I ought not to stratifying you ought not to stratifying he ought not to stratifying we ought not to stratifying you ought not to stratifying they ought not to stratifying
Perfect	V-ing perfect
I ought not to have stratified you ought not to have stratified he ought not to have stratified we ought not to have stratified you ought not to have stratified they ought not to have stratified	I ought not to have been stratifying you ought not to have been stratifying he ought not to have been stratifying we ought not to have been stratifying you ought not to have been stratifying they ought not to have been stratifying

Interrogative form

Simple form	V-ing form
ought to I stratify? ought to you stratify? ought to he stratify? ought to we stratify? ought to you stratify? ought to they stratify?	ought to I be stratifying? ought to you be stratifying? ought to he be stratifying? ought to we be stratifying? ought to you be stratifying? ought to they be stratifying?
Perfect	V-ing perfect
ought to I have stratified? ought to you have stratified? ought to he have stratified? ought to we have stratified? ought to you have stratified? ought to they have stratified?	ought to I have been stratifying? ought to you have been stratifying? ought to he have been stratifying? ought to we have been stratifying? ought to you have been stratifying? ought to they have been stratifying?

Interro-negative form

Simple form	V-ing form
ought I not to stratify? ought you not to stratify? ought he not to stratify? ought we not to stratify? ought you not to stratify? ought they not to stratify?	ought I not to be stratifying? ought you not to be stratifying? ought he not to be stratifying? ought we not to be stratifying? ought you not to be stratifying? ought they not to be stratifying?
Perfect	V-ing perfect
ought I not to have stratified? ought you not to have stratified? ought he not to have stratified? ought we not to have stratified? ought you not to have stratified? ought they not to have stratified?	ought I not to have been stratifying? ought you not to have been stratifying? ought he not to have been stratifying? ought we not to have been stratifying? ought you not to have been stratifying? ought they not to have been stratifying?