English verb conjugation
CAN MENTION

Regular verb: mention - mentioned - mentioned

Affirmation

Simple form	V-ing form
I can mention you can mention he can mention we can mention you can mention they can mention	I can be mentioning you can be mentioning he can be mentioning we can be mentioning you can be mentioning they can be mentioning
Perfect	V-ing perfect
I can have mentioned you can have mentioned he can have mentioned we can have mentioned you can have mentioned they can have mentioned	I can have been mentioning you can have been mentioning he can have been mentioning we can have been mentioning you can have been mentioning they can have been mentioning

Negation

Simple form	V-ing form
I can't mention you can't mention he can't mention we can't mention you can't mention they can't mention	I can't be mentioning you can't be mentioning he can't be mentioning we can't be mentioning you can't be mentioning they can't be mentioning
Perfect	V-ing perfect
I can't have mentioned you can't have mentioned he can't have mentioned we can't have mentioned you can't have mentioned they can't have mentioned	I can't have been mentioning you can't have been mentioning he 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	V-ing form
can I mention? can you mention? can he mention? can we mention? can you mention? can they mention?	can I be mentioning? can you be mentioning? can he be mentioning? can we be mentioning? can you be mentioning? can they be mentioning?
Perfect	V-ing perfect
can I have mentioned? can you have mentioned? can he have mentioned? can we have mentioned? can you have mentioned? can they have mentioned?	can I have been mentioning? can you have been mentioning? can he have been mentioning? can we have been mentioning? can you have been mentioning? can they have been mentioning?

Interro-negative form

Simple form	V-ing form
can't I mention? can't you mention? can't he mention? can't we mention? can't you mention? can't they mention?	can't I be mentioning? can't you be mentioning? can't he be mentioning? can't we be mentioning? can't you be mentioning? can't they be mentioning?
Perfect	V-ing perfect
can't I have mentioned? can't you have mentioned? can't he have mentioned? can't we have mentioned? can't you have mentioned? can't they have mentioned?	can't I have been mentioning? can't you have been mentioning? can't he have been mentioning? can't we have been mentioning? can't you have been mentioning? can't they have been mentioning?