I could mention you could mention she could mention we could mention you could mention they could mention
Forma con V-ing
I could be mentioning you could be mentioning she could be mentioning we could be mentioning you could be mentioning they could be mentioning
Perfecto
I could have mentioned you could have mentioned she could have mentioned we could have mentioned you could have mentioned they could have mentioned
Perfecto con V-ing
I could have been mentioning you could have been mentioning she could have been mentioning we could have been mentioning you could have been mentioning they could have been mentioning
Negación
Forma simple
I couldn't mention you couldn't mention she couldn't mention we couldn't mention you couldn't mention they couldn't mention
Forma con V-ing
I couldn't be mentioning you couldn't be mentioning she couldn't be mentioning we couldn't be mentioning you couldn't be mentioning they couldn't be mentioning
Perfecto
I couldn't have mentioned you couldn't have mentioned she couldn't have mentioned we couldn't have mentioned you couldn't have mentioned they couldn't have mentioned
Perfecto con V-ing
I couldn't have been mentioning you couldn't have been mentioning she couldn't have been mentioning we couldn't have been mentioning you couldn't have been mentioning they couldn't have been mentioning
Forma interrogativa
Forma simple
could I mention? could you mention? could she mention? could we mention? could you mention? could they mention?
Forma con V-ing
could I be mentioning? could you be mentioning? could she be mentioning? could we be mentioning? could you be mentioning? could they be mentioning?
Perfecto
could I have mentioned? could you have mentioned? could she have mentioned? could we have mentioned? could you have mentioned? could they have mentioned?
Perfecto con V-ing
could I have been mentioning? could you have been mentioning? could she have been mentioning? could we have been mentioning? could you have been mentioning? could they have been mentioning?
Forma interro-negativa
Forma simple
couldn't I mention? couldn't you mention? couldn't she mention? couldn't we mention? couldn't you mention? couldn't they mention?
Forma con V-ing
couldn't I be mentioning? couldn't you be mentioning? couldn't she be mentioning? couldn't we be mentioning? couldn't you be mentioning? couldn't they be mentioning?
Perfecto
couldn't I have mentioned? couldn't you have mentioned? couldn't she have mentioned? couldn't we have mentioned? couldn't you have mentioned? couldn't they have mentioned?
Perfecto con V-ing
couldn't I have been mentioning? couldn't you have been mentioning? couldn't she have been mentioning? couldn't we have been mentioning? couldn't you have been mentioning? couldn't they have been mentioning?