English verb conjugation
COULD ABBREVIATE

Regular verb: abbreviate - abbreviated - abbreviated

Affirmation

Simple form	V-ing form
I could abbreviate you could abbreviate he could abbreviate we could abbreviate you could abbreviate they could abbreviate	I could be abbreviating you could be abbreviating he could be abbreviating we could be abbreviating you could be abbreviating they could be abbreviating
Perfect	V-ing perfect
I could have abbreviated you could have abbreviated he could have abbreviated we could have abbreviated you could have abbreviated they could have abbreviated	I could have been abbreviating you could have been abbreviating he could have been abbreviating we could have been abbreviating you could have been abbreviating they could have been abbreviating

Negation

Simple form	V-ing form
I could not abbreviate you could not abbreviate he could not abbreviate we could not abbreviate you could not abbreviate they could not abbreviate	I could not be abbreviating you could not be abbreviating he could not be abbreviating we could not be abbreviating you could not be abbreviating they could not be abbreviating
Perfect	V-ing perfect
I could not have abbreviated you could not have abbreviated he could not have abbreviated we could not have abbreviated you could not have abbreviated they could not have abbreviated	I could not have been abbreviating you could not have been abbreviating he could not have been abbreviating we could not have been abbreviating you could not have been abbreviating they could not have been abbreviating

Interrogative form

Simple form	V-ing form
could I abbreviate? could you abbreviate? could he abbreviate? could we abbreviate? could you abbreviate? could they abbreviate?	could I be abbreviating? could you be abbreviating? could he be abbreviating? could we be abbreviating? could you be abbreviating? could they be abbreviating?
Perfect	V-ing perfect
could I have abbreviated? could you have abbreviated? could he have abbreviated? could we have abbreviated? could you have abbreviated? could they have abbreviated?	could I have been abbreviating? could you have been abbreviating? could he have been abbreviating? could we have been abbreviating? could you have been abbreviating? could they have been abbreviating?

Interro-negative form

Simple form	V-ing form
could I not abbreviate? could you not abbreviate? could he not abbreviate? could we not abbreviate? could you not abbreviate? could they not abbreviate?	could I not be abbreviating? could you not be abbreviating? could he not be abbreviating? could we not be abbreviating? could you not be abbreviating? could they not be abbreviating?
Perfect	V-ing perfect
could I not have abbreviated? could you not have abbreviated? could he not have abbreviated? could we not have abbreviated? could you not have abbreviated? could they not have abbreviated?	could I not have been abbreviating? could you not have been abbreviating? could he not have been abbreviating? could we not have been abbreviating? could you not have been abbreviating? could they not have been abbreviating?