I can mention you can mention she can mention we can mention you can mention they can mention
V-ing form
I can be mentioning you can be mentioning she can be mentioning we can be mentioning you can be mentioning they can be mentioning
Perfect
I can have mentioned you can have mentioned she can have mentioned we can have mentioned you can have mentioned they can have mentioned
V-ing perfect
I can have been mentioning you can have been mentioning she can have been mentioning we can have been mentioning you can have been mentioning they can have been mentioning
Negation
Simple form
I can't mention you can't mention she can't mention we can't mention you can't mention they can't mention
V-ing form
I can't be mentioning you can't be mentioning she can't be mentioning we can't be mentioning you can't be mentioning they can't be mentioning
Perfect
I can't have mentioned you can't have mentioned she can't have mentioned we can't have mentioned you can't have mentioned they can't have mentioned
V-ing perfect
I can't have been mentioning you can't have been mentioning she can't have been mentioning we can't have been mentioning you can't have been mentioning they can't have been mentioning
Interrogative form
Simple form
can I mention? can you mention? can she mention? can we mention? can you mention? can they mention?
V-ing form
can I be mentioning? can you be mentioning? can she be mentioning? can we be mentioning? can you be mentioning? can they be mentioning?
Perfect
can I have mentioned? can you have mentioned? can she have mentioned? can we have mentioned? can you have mentioned? can they have mentioned?
V-ing perfect
can I have been mentioning? can you have been mentioning? can she have been mentioning? can we have been mentioning? can you have been mentioning? can they have been mentioning?
Interro-negative form
Simple form
can't I mention? can't you mention? can't she mention? can't we mention? can't you mention? can't they mention?
V-ing form
can't I be mentioning? can't you be mentioning? can't she be mentioning? can't we be mentioning? can't you be mentioning? can't they be mentioning?
Perfect
can't I have mentioned? can't you have mentioned? can't she have mentioned? can't we have mentioned? can't you have mentioned? can't they have mentioned?
V-ing perfect
can't I have been mentioning? can't you have been mentioning? can't she have been mentioning? can't we have been mentioning? can't you have been mentioning? can't they have been mentioning?