I can chock you can chock he can chock we can chock you can chock they can chock
V-ing form
I can be chocking you can be chocking he can be chocking we can be chocking you can be chocking they can be chocking
Perfect
I can have chocked you can have chocked he can have chocked we can have chocked you can have chocked they can have chocked
V-ing perfect
I can have been chocking you can have been chocking he can have been chocking we can have been chocking you can have been chocking they can have been chocking
Negation
Simple form
I can't chock you can't chock he can't chock we can't chock you can't chock they can't chock
V-ing form
I can't be chocking you can't be chocking he can't be chocking we can't be chocking you can't be chocking they can't be chocking
Perfect
I can't have chocked you can't have chocked he can't have chocked we can't have chocked you can't have chocked they can't have chocked
V-ing perfect
I can't have been chocking you can't have been chocking he can't have been chocking we can't have been chocking you can't have been chocking they can't have been chocking
Interrogative form
Simple form
can I chock? can you chock? can he chock? can we chock? can you chock? can they chock?
V-ing form
can I be chocking? can you be chocking? can he be chocking? can we be chocking? can you be chocking? can they be chocking?
Perfect
can I have chocked? can you have chocked? can he have chocked? can we have chocked? can you have chocked? can they have chocked?
V-ing perfect
can I have been chocking? can you have been chocking? can he have been chocking? can we have been chocking? can you have been chocking? can they have been chocking?
Interro-negative form
Simple form
can't I chock? can't you chock? can't he chock? can't we chock? can't you chock? can't they chock?
V-ing form
can't I be chocking? can't you be chocking? can't he be chocking? can't we be chocking? can't you be chocking? can't they be chocking?
Perfect
can't I have chocked? can't you have chocked? can't he have chocked? can't we have chocked? can't you have chocked? can't they have chocked?
V-ing perfect
can't I have been chocking? can't you have been chocking? can't he have been chocking? can't we have been chocking? can't you have been chocking? can't they have been chocking?