English verb conjugation
COULD INTERJECT

Regular verb: interject - interjected - interjected

Affirmation

Simple form	V-ing form
I could interject you could interject he could interject we could interject you could interject they could interject	I could be interjecting you could be interjecting he could be interjecting we could be interjecting you could be interjecting they could be interjecting
Perfect	V-ing perfect
I could have interjected you could have interjected he could have interjected we could have interjected you could have interjected they could have interjected	I could have been interjecting you could have been interjecting he could have been interjecting we could have been interjecting you could have been interjecting they could have been interjecting

Negation

Simple form	V-ing form
I could not interject you could not interject he could not interject we could not interject you could not interject they could not interject	I could not be interjecting you could not be interjecting he could not be interjecting we could not be interjecting you could not be interjecting they could not be interjecting
Perfect	V-ing perfect
I could not have interjected you could not have interjected he could not have interjected we could not have interjected you could not have interjected they could not have interjected	I could not have been interjecting you could not have been interjecting he could not have been interjecting we could not have been interjecting you could not have been interjecting they could not have been interjecting

Interrogative form

Simple form	V-ing form
could I interject? could you interject? could he interject? could we interject? could you interject? could they interject?	could I be interjecting? could you be interjecting? could he be interjecting? could we be interjecting? could you be interjecting? could they be interjecting?
Perfect	V-ing perfect
could I have interjected? could you have interjected? could he have interjected? could we have interjected? could you have interjected? could they have interjected?	could I have been interjecting? could you have been interjecting? could he have been interjecting? could we have been interjecting? could you have been interjecting? could they have been interjecting?

Interro-negative form

Simple form	V-ing form
could I not interject? could you not interject? could he not interject? could we not interject? could you not interject? could they not interject?	could I not be interjecting? could you not be interjecting? could he not be interjecting? could we not be interjecting? could you not be interjecting? could they not be interjecting?
Perfect	V-ing perfect
could I not have interjected? could you not have interjected? could he not have interjected? could we not have interjected? could you not have interjected? could they not have interjected?	could I not have been interjecting? could you not have been interjecting? could he not have been interjecting? could we not have been interjecting? could you not have been interjecting? could they not have been interjecting?