English verb conjugation
MUST CHAPTER

Regular verb: chapter - chaptered - chaptered

Affirmation

Simple form	V-ing form
I must chapter you must chapter she must chapter we must chapter you must chapter they must chapter	I must be chaptering you must be chaptering she must be chaptering we must be chaptering you must be chaptering they must be chaptering
Perfect	V-ing perfect
I must have chaptered you must have chaptered she must have chaptered we must have chaptered you must have chaptered they must have chaptered	I must have been chaptering you must have been chaptering she must have been chaptering we must have been chaptering you must have been chaptering they must have been chaptering

Negation

Simple form	V-ing form
I must not chapter you must not chapter she must not chapter we must not chapter you must not chapter they must not chapter	I must not be chaptering you must not be chaptering she must not be chaptering we must not be chaptering you must not be chaptering they must not be chaptering
Perfect	V-ing perfect
I must not have chaptered you must not have chaptered she must not have chaptered we must not have chaptered you must not have chaptered they must not have chaptered	I must not have been chaptering you must not have been chaptering she must not have been chaptering we must not have been chaptering you must not have been chaptering they must not have been chaptering

Interrogative form

Simple form	V-ing form
must I chapter? must you chapter? must she chapter? must we chapter? must you chapter? must they chapter?	must I be chaptering? must you be chaptering? must she be chaptering? must we be chaptering? must you be chaptering? must they be chaptering?
Perfect	V-ing perfect
must I have chaptered? must you have chaptered? must she have chaptered? must we have chaptered? must you have chaptered? must they have chaptered?	must I have been chaptering? must you have been chaptering? must she have been chaptering? must we have been chaptering? must you have been chaptering? must they have been chaptering?

Interro-negative form

Simple form	V-ing form
must I not chapter? must you not chapter? must she not chapter? must we not chapter? must you not chapter? must they not chapter?	must I not be chaptering? must you not be chaptering? must she not be chaptering? must we not be chaptering? must you not be chaptering? must they not be chaptering?
Perfect	V-ing perfect
must I not have chaptered? must you not have chaptered? must she not have chaptered? must we not have chaptered? must you not have chaptered? must they not have chaptered?	must I not have been chaptering? must you not have been chaptering? must she not have been chaptering? must we not have been chaptering? must you not have been chaptering? must they not have been chaptering?