English verb conjugation
COULD INTERJECT

Regular verb: interject - interjected - interjected

Affirmation

Simple form	V-ing form
I could interject you could interject she could interject we could interject you could interject they could interject	I could be interjecting you could be interjecting she 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 she 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 she 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 couldn't interject you couldn't interject she couldn't interject we couldn't interject you couldn't interject they couldn't interject	I couldn't be interjecting you couldn't be interjecting she couldn't be interjecting we couldn't be interjecting you couldn't be interjecting they couldn't be interjecting
Perfect	V-ing perfect
I couldn't have interjected you couldn't have interjected she couldn't have interjected we couldn't have interjected you couldn't have interjected they couldn't have interjected	I couldn't have been interjecting you couldn't have been interjecting she couldn't have been interjecting we couldn't have been interjecting you couldn't have been interjecting they couldn't have been interjecting

Interrogative form

Simple form	V-ing form
could I interject? could you interject? could she interject? could we interject? could you interject? could they interject?	could I be interjecting? could you be interjecting? could she 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 she 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 she 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
couldn't I interject? couldn't you interject? couldn't she interject? couldn't we interject? couldn't you interject? couldn't they interject?	couldn't I be interjecting? couldn't you be interjecting? couldn't she be interjecting? couldn't we be interjecting? couldn't you be interjecting? couldn't they be interjecting?
Perfect	V-ing perfect
couldn't I have interjected? couldn't you have interjected? couldn't she have interjected? couldn't we have interjected? couldn't you have interjected? couldn't they have interjected?	couldn't I have been interjecting? couldn't you have been interjecting? couldn't she have been interjecting? couldn't we have been interjecting? couldn't you have been interjecting? couldn't they have been interjecting?