English verb conjugation
OUGHT TO DULL

Regular verb: dull - dulled - dulled

Affirmation

Simple form	V-ing form
I ought to dull you ought to dull she ought to dull we ought to dull you ought to dull they ought to dull	I ought to be dulling you ought to be dulling she ought to be dulling we ought to be dulling you ought to be dulling they ought to be dulling
Perfect	V-ing perfect
I ought to have dulled you ought to have dulled she ought to have dulled we ought to have dulled you ought to have dulled they ought to have dulled	I ought to have been dulling you ought to have been dulling she ought to have been dulling we ought to have been dulling you ought to have been dulling they ought to have been dulling

Negation

Simple form	V-ing form
I ought not to dull you ought not to dull she ought not to dull we ought not to dull you ought not to dull they ought not to dull	I ought not to dulling you ought not to dulling she ought not to dulling we ought not to dulling you ought not to dulling they ought not to dulling
Perfect	V-ing perfect
I ought not to have dulled you ought not to have dulled she ought not to have dulled we ought not to have dulled you ought not to have dulled they ought not to have dulled	I ought not to have been dulling you ought not to have been dulling she ought not to have been dulling we ought not to have been dulling you ought not to have been dulling they ought not to have been dulling

Interrogative form

Simple form	V-ing form
ought to I dull? ought to you dull? ought to she dull? ought to we dull? ought to you dull? ought to they dull?	ought to I be dulling? ought to you be dulling? ought to she be dulling? ought to we be dulling? ought to you be dulling? ought to they be dulling?
Perfect	V-ing perfect
ought to I have dulled? ought to you have dulled? ought to she have dulled? ought to we have dulled? ought to you have dulled? ought to they have dulled?	ought to I have been dulling? ought to you have been dulling? ought to she have been dulling? ought to we have been dulling? ought to you have been dulling? ought to they have been dulling?

Interro-negative form

Simple form	V-ing form
ought I not to dull? ought you not to dull? ought she not to dull? ought we not to dull? ought you not to dull? ought they not to dull?	ought I not to be dulling? ought you not to be dulling? ought she not to be dulling? ought we not to be dulling? ought you not to be dulling? ought they not to be dulling?
Perfect	V-ing perfect
ought I not to have dulled? ought you not to have dulled? ought she not to have dulled? ought we not to have dulled? ought you not to have dulled? ought they not to have dulled?	ought I not to have been dulling? ought you not to have been dulling? ought she not to have been dulling? ought we not to have been dulling? ought you not to have been dulling? ought they not to have been dulling?