English verb conjugation
OUGHT TO CHALK

Regular verb: chalk - chalked - chalked

Affirmation

Simple form	V-ing form
I ought to chalk you ought to chalk he ought to chalk we ought to chalk you ought to chalk they ought to chalk	I ought to be chalking you ought to be chalking he ought to be chalking we ought to be chalking you ought to be chalking they ought to be chalking
Perfect	V-ing perfect
I ought to have chalked you ought to have chalked he ought to have chalked we ought to have chalked you ought to have chalked they ought to have chalked	I ought to have been chalking you ought to have been chalking he ought to have been chalking we ought to have been chalking you ought to have been chalking they ought to have been chalking

Negation

Simple form	V-ing form
I ought not to chalk you ought not to chalk he ought not to chalk we ought not to chalk you ought not to chalk they ought not to chalk	I ought not to chalking you ought not to chalking he ought not to chalking we ought not to chalking you ought not to chalking they ought not to chalking
Perfect	V-ing perfect
I ought not to have chalked you ought not to have chalked he ought not to have chalked we ought not to have chalked you ought not to have chalked they ought not to have chalked	I ought not to have been chalking you ought not to have been chalking he ought not to have been chalking we ought not to have been chalking you ought not to have been chalking they ought not to have been chalking

Interrogative form

Simple form	V-ing form
ought to I chalk? ought to you chalk? ought to he chalk? ought to we chalk? ought to you chalk? ought to they chalk?	ought to I be chalking? ought to you be chalking? ought to he be chalking? ought to we be chalking? ought to you be chalking? ought to they be chalking?
Perfect	V-ing perfect
ought to I have chalked? ought to you have chalked? ought to he have chalked? ought to we have chalked? ought to you have chalked? ought to they have chalked?	ought to I have been chalking? ought to you have been chalking? ought to he have been chalking? ought to we have been chalking? ought to you have been chalking? ought to they have been chalking?

Interro-negative form

Simple form	V-ing form
ought I not to chalk? ought you not to chalk? ought he not to chalk? ought we not to chalk? ought you not to chalk? ought they not to chalk?	ought I not to be chalking? ought you not to be chalking? ought he not to be chalking? ought we not to be chalking? ought you not to be chalking? ought they not to be chalking?
Perfect	V-ing perfect
ought I not to have chalked? ought you not to have chalked? ought he not to have chalked? ought we not to have chalked? ought you not to have chalked? ought they not to have chalked?	ought I not to have been chalking? ought you not to have been chalking? ought he not to have been chalking? ought we not to have been chalking? ought you not to have been chalking? ought they not to have been chalking?