English verb conjugation
OUGHT TO PREWASH

Regular verb: prewash - prewashed - prewashed

Affirmation

Simple form	V-ing form
I ought to prewash you ought to prewash he ought to prewash we ought to prewash you ought to prewash they ought to prewash	I ought to be prewashing you ought to be prewashing he ought to be prewashing we ought to be prewashing you ought to be prewashing they ought to be prewashing
Perfect	V-ing perfect
I ought to have prewashed you ought to have prewashed he ought to have prewashed we ought to have prewashed you ought to have prewashed they ought to have prewashed	I ought to have been prewashing you ought to have been prewashing he ought to have been prewashing we ought to have been prewashing you ought to have been prewashing they ought to have been prewashing

Negation

Simple form	V-ing form
I oughtn't to prewash you oughtn't to prewash he oughtn't to prewash we oughtn't to prewash you oughtn't to prewash they oughtn't to prewash	I oughtn't to be prewashing you oughtn't to be prewashing he oughtn't to be prewashing we oughtn't to be prewashing you oughtn't to be prewashing they oughtn't to be prewashing
Perfect	V-ing perfect
I oughtn't to have prewashed you oughtn't to have prewashed he oughtn't to have prewashed we oughtn't to have prewashed you oughtn't to have prewashed they oughtn't to have prewashed	I oughtn't to have been prewashing you oughtn't to have been prewashing he oughtn't to have been prewashing we oughtn't to have been prewashing you oughtn't to have been prewashing they oughtn't to have been prewashing

Interrogative form

Simple form	V-ing form
ought to I prewash? ought to you prewash? ought to he prewash? ought to we prewash? ought to you prewash? ought to they prewash?	ought to I be prewashing? ought to you be prewashing? ought to he be prewashing? ought to we be prewashing? ought to you be prewashing? ought to they be prewashing?
Perfect	V-ing perfect
ought to I have prewashed? ought to you have prewashed? ought to he have prewashed? ought to we have prewashed? ought to you have prewashed? ought to they have prewashed?	ought to I have been prewashing? ought to you have been prewashing? ought to he have been prewashing? ought to we have been prewashing? ought to you have been prewashing? ought to they have been prewashing?

Interro-negative form

Simple form	V-ing form
oughtn't I to prewash? oughtn't you to prewash? oughtn't he to prewash? oughtn't we to prewash? oughtn't you to prewash? oughtn't they to prewash?	oughtn't I to be prewashing? oughtn't you to be prewashing? oughtn't he to be prewashing? oughtn't we to be prewashing? oughtn't you to be prewashing? oughtn't they to be prewashing?
Perfect	V-ing perfect
oughtn't I to have prewashed? oughtn't you to have prewashed? oughtn't he to have prewashed? oughtn't we to have prewashed? oughtn't you to have prewashed? oughtn't they to have prewashed?	oughtn't I to have been prewashing? oughtn't you to have been prewashing? oughtn't he to have been prewashing? oughtn't we to have been prewashing? oughtn't you to have been prewashing? oughtn't they to have been prewashing?