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 she 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 she 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 she 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 she 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 oughtn't to stratify you oughtn't to stratify she oughtn't to stratify we oughtn't to stratify you oughtn't to stratify they oughtn't to stratify	I oughtn't to be stratifying you oughtn't to be stratifying she oughtn't to be stratifying we oughtn't to be stratifying you oughtn't to be stratifying they oughtn't to be stratifying
Perfect	V-ing perfect
I oughtn't to have stratified you oughtn't to have stratified she oughtn't to have stratified we oughtn't to have stratified you oughtn't to have stratified they oughtn't to have stratified	I oughtn't to have been stratifying you oughtn't to have been stratifying she oughtn't to have been stratifying we oughtn't to have been stratifying you oughtn't to have been stratifying they oughtn't to have been stratifying

Interrogative form

Simple form	V-ing form
ought to I stratify? ought to you stratify? ought to she 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 she 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 she 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 she 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
oughtn't I to stratify? oughtn't you to stratify? oughtn't she to stratify? oughtn't we to stratify? oughtn't you to stratify? oughtn't they to stratify?	oughtn't I to be stratifying? oughtn't you to be stratifying? oughtn't she to be stratifying? oughtn't we to be stratifying? oughtn't you to be stratifying? oughtn't they to be stratifying?
Perfect	V-ing perfect
oughtn't I to have stratified? oughtn't you to have stratified? oughtn't she to have stratified? oughtn't we to have stratified? oughtn't you to have stratified? oughtn't they to have stratified?	oughtn't I to have been stratifying? oughtn't you to have been stratifying? oughtn't she to have been stratifying? oughtn't we to have been stratifying? oughtn't you to have been stratifying? oughtn't they to have been stratifying?