I can advert you can advert she can advert we can advert you can advert they can advert
V-ing form
I can be adverting you can be adverting she can be adverting we can be adverting you can be adverting they can be adverting
Perfect
I can have adverted you can have adverted she can have adverted we can have adverted you can have adverted they can have adverted
V-ing perfect
I can have been adverting you can have been adverting she can have been adverting we can have been adverting you can have been adverting they can have been adverting
Negation
Simple form
I can't advert you can't advert she can't advert we can't advert you can't advert they can't advert
V-ing form
I can't be adverting you can't be adverting she can't be adverting we can't be adverting you can't be adverting they can't be adverting
Perfect
I can't have adverted you can't have adverted she can't have adverted we can't have adverted you can't have adverted they can't have adverted
V-ing perfect
I can't have been adverting you can't have been adverting she can't have been adverting we can't have been adverting you can't have been adverting they can't have been adverting
Interrogative form
Simple form
can I advert? can you advert? can she advert? can we advert? can you advert? can they advert?
V-ing form
can I be adverting? can you be adverting? can she be adverting? can we be adverting? can you be adverting? can they be adverting?
Perfect
can I have adverted? can you have adverted? can she have adverted? can we have adverted? can you have adverted? can they have adverted?
V-ing perfect
can I have been adverting? can you have been adverting? can she have been adverting? can we have been adverting? can you have been adverting? can they have been adverting?
Interro-negative form
Simple form
can't I advert? can't you advert? can't she advert? can't we advert? can't you advert? can't they advert?
V-ing form
can't I be adverting? can't you be adverting? can't she be adverting? can't we be adverting? can't you be adverting? can't they be adverting?
Perfect
can't I have adverted? can't you have adverted? can't she have adverted? can't we have adverted? can't you have adverted? can't they have adverted?
V-ing perfect
can't I have been adverting? can't you have been adverting? can't she have been adverting? can't we have been adverting? can't you have been adverting? can't they have been adverting?