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 ought not to prewash you ought not to prewash he ought not to prewash we ought not to prewash you ought not to prewash they ought not to prewash	I ought not to prewashing you ought not to prewashing he ought not to prewashing we ought not to prewashing you ought not to prewashing they ought not to prewashing
Perfect	V-ing perfect
I ought not to have prewashed you ought not to have prewashed he ought not to have prewashed we ought not to have prewashed you ought not to have prewashed they ought not to have prewashed	I ought not to have been prewashing you ought not to have been prewashing he ought not to have been prewashing we ought not to have been prewashing you ought not to have been prewashing they ought not 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
ought I not to prewash? ought you not to prewash? ought he not to prewash? ought we not to prewash? ought you not to prewash? ought they not to prewash?	ought I not to be prewashing? ought you not to be prewashing? ought he not to be prewashing? ought we not to be prewashing? ought you not to be prewashing? ought they not to be prewashing?
Perfect	V-ing perfect
ought I not to have prewashed? ought you not to have prewashed? ought he not to have prewashed? ought we not to have prewashed? ought you not to have prewashed? ought they not to have prewashed?	ought I not to have been prewashing? ought you not to have been prewashing? ought he not to have been prewashing? ought we not to have been prewashing? ought you not to have been prewashing? ought they not to have been prewashing?