English verb conjugation
COULD CHAPTER

Regular verb: chapter - chaptered - chaptered

Affirmation

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

Negation

Simple form	V-ing form
I couldn't chapter you couldn't chapter she couldn't chapter we couldn't chapter you couldn't chapter they couldn't chapter	I couldn't be chaptering you couldn't be chaptering she couldn't be chaptering we couldn't be chaptering you couldn't be chaptering they couldn't be chaptering
Perfect	V-ing perfect
I couldn't have chaptered you couldn't have chaptered she couldn't have chaptered we couldn't have chaptered you couldn't have chaptered they couldn't have chaptered	I couldn't have been chaptering you couldn't have been chaptering she couldn't have been chaptering we couldn't have been chaptering you couldn't have been chaptering they couldn't have been chaptering

Interrogative form

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

Interro-negative form

Simple form	V-ing form
couldn't I chapter? couldn't you chapter? couldn't she chapter? couldn't we chapter? couldn't you chapter? couldn't they chapter?	couldn't I be chaptering? couldn't you be chaptering? couldn't she be chaptering? couldn't we be chaptering? couldn't you be chaptering? couldn't they be chaptering?
Perfect	V-ing perfect
couldn't I have chaptered? couldn't you have chaptered? couldn't she have chaptered? couldn't we have chaptered? couldn't you have chaptered? couldn't they have chaptered?	couldn't I have been chaptering? couldn't you have been chaptering? couldn't she have been chaptering? couldn't we have been chaptering? couldn't you have been chaptering? couldn't they have been chaptering?