I can chitchat you can chitchat he can chitchat we can chitchat you can chitchat they can chitchat
V-ing form
I can be chitchating you can be chitchating he can be chitchating we can be chitchating you can be chitchating they can be chitchating
Perfect
I can have chitchated you can have chitchated he can have chitchated we can have chitchated you can have chitchated they can have chitchated
V-ing perfect
I can have been chitchating you can have been chitchating he can have been chitchating we can have been chitchating you can have been chitchating they can have been chitchating
Negation
Simple form
I cannot chitchat you cannot chitchat he cannot chitchat we cannot chitchat you cannot chitchat they cannot chitchat
V-ing form
I cannot be chitchating you cannot be chitchating he cannot be chitchating we cannot be chitchating you cannot be chitchating they cannot be chitchating
Perfect
I cannot have chitchated you cannot have chitchated he cannot have chitchated we cannot have chitchated you cannot have chitchated they cannot have chitchated
V-ing perfect
I cannot have been chitchating you cannot have been chitchating he cannot have been chitchating we cannot have been chitchating you cannot have been chitchating they cannot have been chitchating
Interrogative form
Simple form
can I chitchat? can you chitchat? can he chitchat? can we chitchat? can you chitchat? can they chitchat?
V-ing form
can I be chitchating? can you be chitchating? can he be chitchating? can we be chitchating? can you be chitchating? can they be chitchating?
Perfect
can I have chitchated? can you have chitchated? can he have chitchated? can we have chitchated? can you have chitchated? can they have chitchated?
V-ing perfect
can I have been chitchating? can you have been chitchating? can he have been chitchating? can we have been chitchating? can you have been chitchating? can they have been chitchating?
Interro-negative form
Simple form
can I not chitchat? can you not chitchat? can he not chitchat? can we not chitchat? can you not chitchat? can they not chitchat?
V-ing form
can I not be chitchating? can you not be chitchating? can he not be chitchating? can we not be chitchating? can you not be chitchating? can they not be chitchating?
Perfect
can I not have chitchated? can you not have chitchated? can he not have chitchated? can we not have chitchated? can you not have chitchated? can they not have chitchated?
V-ing perfect
can I not have been chitchating? can you not have been chitchating? can he not have been chitchating? can we not have been chitchating? can you not have been chitchating? can they not have been chitchating?