I can interject you can interject he can interject we can interject you can interject they can interject
V-ing form
I can be interjecting you can be interjecting he can be interjecting we can be interjecting you can be interjecting they can be interjecting
Perfect
I can have interjected you can have interjected he can have interjected we can have interjected you can have interjected they can have interjected
V-ing perfect
I can have been interjecting you can have been interjecting he can have been interjecting we can have been interjecting you can have been interjecting they can have been interjecting
Negation
Simple form
I cannot interject you cannot interject he cannot interject we cannot interject you cannot interject they cannot interject
V-ing form
I cannot be interjecting you cannot be interjecting he cannot be interjecting we cannot be interjecting you cannot be interjecting they cannot be interjecting
Perfect
I cannot have interjected you cannot have interjected he cannot have interjected we cannot have interjected you cannot have interjected they cannot have interjected
V-ing perfect
I cannot have been interjecting you cannot have been interjecting he cannot have been interjecting we cannot have been interjecting you cannot have been interjecting they cannot have been interjecting
Interrogative form
Simple form
can I interject? can you interject? can he interject? can we interject? can you interject? can they interject?
V-ing form
can I be interjecting? can you be interjecting? can he be interjecting? can we be interjecting? can you be interjecting? can they be interjecting?
Perfect
can I have interjected? can you have interjected? can he have interjected? can we have interjected? can you have interjected? can they have interjected?
V-ing perfect
can I have been interjecting? can you have been interjecting? can he have been interjecting? can we have been interjecting? can you have been interjecting? can they have been interjecting?
Interro-negative form
Simple form
can I not interject? can you not interject? can he not interject? can we not interject? can you not interject? can they not interject?
V-ing form
can I not be interjecting? can you not be interjecting? can he not be interjecting? can we not be interjecting? can you not be interjecting? can they not be interjecting?
Perfect
can I not have interjected? can you not have interjected? can he not have interjected? can we not have interjected? can you not have interjected? can they not have interjected?
V-ing perfect
can I not have been interjecting? can you not have been interjecting? can he not have been interjecting? can we not have been interjecting? can you not have been interjecting? can they not have been interjecting?