I can chapter you can chapter he can chapter we can chapter you can chapter they can chapter
V-ing form
I can be chaptering you can be chaptering he can be chaptering we can be chaptering you can be chaptering they can be chaptering
Perfect
I can have chaptered you can have chaptered he can have chaptered we can have chaptered you can have chaptered they can have chaptered
V-ing perfect
I can have been chaptering you can have been chaptering he can have been chaptering we can have been chaptering you can have been chaptering they can have been chaptering
Negation
Simple form
I cannot chapter you cannot chapter he cannot chapter we cannot chapter you cannot chapter they cannot chapter
V-ing form
I cannot be chaptering you cannot be chaptering he cannot be chaptering we cannot be chaptering you cannot be chaptering they cannot be chaptering
Perfect
I cannot have chaptered you cannot have chaptered he cannot have chaptered we cannot have chaptered you cannot have chaptered they cannot have chaptered
V-ing perfect
I cannot have been chaptering you cannot have been chaptering he cannot have been chaptering we cannot have been chaptering you cannot have been chaptering they cannot have been chaptering
Interrogative form
Simple form
can I chapter? can you chapter? can he chapter? can we chapter? can you chapter? can they chapter?
V-ing form
can I be chaptering? can you be chaptering? can he be chaptering? can we be chaptering? can you be chaptering? can they be chaptering?
Perfect
can I have chaptered? can you have chaptered? can he have chaptered? can we have chaptered? can you have chaptered? can they have chaptered?
V-ing perfect
can I have been chaptering? can you have been chaptering? can he have been chaptering? can we have been chaptering? can you have been chaptering? can they have been chaptering?
Interro-negative form
Simple form
can I not chapter? can you not chapter? can he not chapter? can we not chapter? can you not chapter? can they not chapter?
V-ing form
can I not be chaptering? can you not be chaptering? can he not be chaptering? can we not be chaptering? can you not be chaptering? can they not be chaptering?
Perfect
can I not have chaptered? can you not have chaptered? can he not have chaptered? can we not have chaptered? can you not have chaptered? can they not have chaptered?
V-ing perfect
can I not have been chaptering? can you not have been chaptering? can he not have been chaptering? can we not have been chaptering? can you not have been chaptering? can they not have been chaptering?