I can attribute you can attribute she can attribute we can attribute you can attribute they can attribute
V-ing form
I can be attributing you can be attributing she can be attributing we can be attributing you can be attributing they can be attributing
Perfect
I can have attributed you can have attributed she can have attributed we can have attributed you can have attributed they can have attributed
V-ing perfect
I can have been attributing you can have been attributing she can have been attributing we can have been attributing you can have been attributing they can have been attributing
Negation
Simple form
I can't attribute you can't attribute she can't attribute we can't attribute you can't attribute they can't attribute
V-ing form
I can't be attributing you can't be attributing she can't be attributing we can't be attributing you can't be attributing they can't be attributing
Perfect
I can't have attributed you can't have attributed she can't have attributed we can't have attributed you can't have attributed they can't have attributed
V-ing perfect
I can't have been attributing you can't have been attributing she can't have been attributing we can't have been attributing you can't have been attributing they can't have been attributing
Interrogative form
Simple form
can I attribute? can you attribute? can she attribute? can we attribute? can you attribute? can they attribute?
V-ing form
can I be attributing? can you be attributing? can she be attributing? can we be attributing? can you be attributing? can they be attributing?
Perfect
can I have attributed? can you have attributed? can she have attributed? can we have attributed? can you have attributed? can they have attributed?
V-ing perfect
can I have been attributing? can you have been attributing? can she have been attributing? can we have been attributing? can you have been attributing? can they have been attributing?
Interro-negative form
Simple form
can't I attribute? can't you attribute? can't she attribute? can't we attribute? can't you attribute? can't they attribute?
V-ing form
can't I be attributing? can't you be attributing? can't she be attributing? can't we be attributing? can't you be attributing? can't they be attributing?
Perfect
can't I have attributed? can't you have attributed? can't she have attributed? can't we have attributed? can't you have attributed? can't they have attributed?
V-ing perfect
can't I have been attributing? can't you have been attributing? can't she have been attributing? can't we have been attributing? can't you have been attributing? can't they have been attributing?