English verb conjugation
COULD ADVERT

Regular verb: advert - adverted - adverted

Affirmation

Simple form	V-ing form
I could advert you could advert he could advert we could advert you could advert they could advert	I could be adverting you could be adverting he could be adverting we could be adverting you could be adverting they could be adverting
Perfect	V-ing perfect
I could have adverted you could have adverted he could have adverted we could have adverted you could have adverted they could have adverted	I could have been adverting you could have been adverting he could have been adverting we could have been adverting you could have been adverting they could have been adverting

Negation

Simple form	V-ing form
I couldn't advert you couldn't advert he couldn't advert we couldn't advert you couldn't advert they couldn't advert	I couldn't be adverting you couldn't be adverting he couldn't be adverting we couldn't be adverting you couldn't be adverting they couldn't be adverting
Perfect	V-ing perfect
I couldn't have adverted you couldn't have adverted he couldn't have adverted we couldn't have adverted you couldn't have adverted they couldn't have adverted	I couldn't have been adverting you couldn't have been adverting he couldn't have been adverting we couldn't have been adverting you couldn't have been adverting they couldn't have been adverting

Interrogative form

Simple form	V-ing form
could I advert? could you advert? could he advert? could we advert? could you advert? could they advert?	could I be adverting? could you be adverting? could he be adverting? could we be adverting? could you be adverting? could they be adverting?
Perfect	V-ing perfect
could I have adverted? could you have adverted? could he have adverted? could we have adverted? could you have adverted? could they have adverted?	could I have been adverting? could you have been adverting? could he have been adverting? could we have been adverting? could you have been adverting? could they have been adverting?

Interro-negative form

Simple form	V-ing form
couldn't I advert? couldn't you advert? couldn't he advert? couldn't we advert? couldn't you advert? couldn't they advert?	couldn't I be adverting? couldn't you be adverting? couldn't he be adverting? couldn't we be adverting? couldn't you be adverting? couldn't they be adverting?
Perfect	V-ing perfect
couldn't I have adverted? couldn't you have adverted? couldn't he have adverted? couldn't we have adverted? couldn't you have adverted? couldn't they have adverted?	couldn't I have been adverting? couldn't you have been adverting? couldn't he have been adverting? couldn't we have been adverting? couldn't you have been adverting? couldn't they have been adverting?