English verb conjugation
OUGHT TO PIPE

Regular verb: pipe - piped - piped

Affirmation

Simple form	V-ing form
I ought to pipe you ought to pipe he ought to pipe we ought to pipe you ought to pipe they ought to pipe	I ought to be piping you ought to be piping he ought to be piping we ought to be piping you ought to be piping they ought to be piping
Perfect	V-ing perfect
I ought to have piped you ought to have piped he ought to have piped we ought to have piped you ought to have piped they ought to have piped	I ought to have been piping you ought to have been piping he ought to have been piping we ought to have been piping you ought to have been piping they ought to have been piping

Negation

Simple form	V-ing form
I ought not to pipe you ought not to pipe he ought not to pipe we ought not to pipe you ought not to pipe they ought not to pipe	I ought not to piping you ought not to piping he ought not to piping we ought not to piping you ought not to piping they ought not to piping
Perfect	V-ing perfect
I ought not to have piped you ought not to have piped he ought not to have piped we ought not to have piped you ought not to have piped they ought not to have piped	I ought not to have been piping you ought not to have been piping he ought not to have been piping we ought not to have been piping you ought not to have been piping they ought not to have been piping

Interrogative form

Simple form	V-ing form
ought to I pipe? ought to you pipe? ought to he pipe? ought to we pipe? ought to you pipe? ought to they pipe?	ought to I be piping? ought to you be piping? ought to he be piping? ought to we be piping? ought to you be piping? ought to they be piping?
Perfect	V-ing perfect
ought to I have piped? ought to you have piped? ought to he have piped? ought to we have piped? ought to you have piped? ought to they have piped?	ought to I have been piping? ought to you have been piping? ought to he have been piping? ought to we have been piping? ought to you have been piping? ought to they have been piping?

Interro-negative form

Simple form	V-ing form
ought I not to pipe? ought you not to pipe? ought he not to pipe? ought we not to pipe? ought you not to pipe? ought they not to pipe?	ought I not to be piping? ought you not to be piping? ought he not to be piping? ought we not to be piping? ought you not to be piping? ought they not to be piping?
Perfect	V-ing perfect
ought I not to have piped? ought you not to have piped? ought he not to have piped? ought we not to have piped? ought you not to have piped? ought they not to have piped?	ought I not to have been piping? ought you not to have been piping? ought he not to have been piping? ought we not to have been piping? ought you not to have been piping? ought they not to have been piping?