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