English verb conjugation
OUGHT TO PREPLAN

Regular verb: preplan - preplaned - preplaned

Affirmation

Simple form	V-ing form
I ought to preplan you ought to preplan he ought to preplan we ought to preplan you ought to preplan they ought to preplan	I ought to be preplaning you ought to be preplaning he ought to be preplaning we ought to be preplaning you ought to be preplaning they ought to be preplaning
Perfect	V-ing perfect
I ought to have preplaned you ought to have preplaned he ought to have preplaned we ought to have preplaned you ought to have preplaned they ought to have preplaned	I ought to have been preplaning you ought to have been preplaning he ought to have been preplaning we ought to have been preplaning you ought to have been preplaning they ought to have been preplaning

Negation

Simple form	V-ing form
I ought not to preplan you ought not to preplan he ought not to preplan we ought not to preplan you ought not to preplan they ought not to preplan	I ought not to preplaning you ought not to preplaning he ought not to preplaning we ought not to preplaning you ought not to preplaning they ought not to preplaning
Perfect	V-ing perfect
I ought not to have preplaned you ought not to have preplaned he ought not to have preplaned we ought not to have preplaned you ought not to have preplaned they ought not to have preplaned	I ought not to have been preplaning you ought not to have been preplaning he ought not to have been preplaning we ought not to have been preplaning you ought not to have been preplaning they ought not to have been preplaning

Interrogative form

Simple form	V-ing form
ought to I preplan? ought to you preplan? ought to he preplan? ought to we preplan? ought to you preplan? ought to they preplan?	ought to I be preplaning? ought to you be preplaning? ought to he be preplaning? ought to we be preplaning? ought to you be preplaning? ought to they be preplaning?
Perfect	V-ing perfect
ought to I have preplaned? ought to you have preplaned? ought to he have preplaned? ought to we have preplaned? ought to you have preplaned? ought to they have preplaned?	ought to I have been preplaning? ought to you have been preplaning? ought to he have been preplaning? ought to we have been preplaning? ought to you have been preplaning? ought to they have been preplaning?

Interro-negative form

Simple form	V-ing form
ought I not to preplan? ought you not to preplan? ought he not to preplan? ought we not to preplan? ought you not to preplan? ought they not to preplan?	ought I not to be preplaning? ought you not to be preplaning? ought he not to be preplaning? ought we not to be preplaning? ought you not to be preplaning? ought they not to be preplaning?
Perfect	V-ing perfect
ought I not to have preplaned? ought you not to have preplaned? ought he not to have preplaned? ought we not to have preplaned? ought you not to have preplaned? ought they not to have preplaned?	ought I not to have been preplaning? ought you not to have been preplaning? ought he not to have been preplaning? ought we not to have been preplaning? ought you not to have been preplaning? ought they not to have been preplaning?