English verb conjugation
COULD SUCCEED

Regular verb: succeed - succeeded - succeeded

Affirmation

Simple form	V-ing form
I could succeed you could succeed he could succeed we could succeed you could succeed they could succeed	I could be succeeding you could be succeeding he could be succeeding we could be succeeding you could be succeeding they could be succeeding
Perfect	V-ing perfect
I could have succeeded you could have succeeded he could have succeeded we could have succeeded you could have succeeded they could have succeeded	I could have been succeeding you could have been succeeding he could have been succeeding we could have been succeeding you could have been succeeding they could have been succeeding

Negation

Simple form	V-ing form
I couldn't succeed you couldn't succeed he couldn't succeed we couldn't succeed you couldn't succeed they couldn't succeed	I couldn't be succeeding you couldn't be succeeding he couldn't be succeeding we couldn't be succeeding you couldn't be succeeding they couldn't be succeeding
Perfect	V-ing perfect
I couldn't have succeeded you couldn't have succeeded he couldn't have succeeded we couldn't have succeeded you couldn't have succeeded they couldn't have succeeded	I couldn't have been succeeding you couldn't have been succeeding he couldn't have been succeeding we couldn't have been succeeding you couldn't have been succeeding they couldn't have been succeeding

Interrogative form

Simple form	V-ing form
could I succeed? could you succeed? could he succeed? could we succeed? could you succeed? could they succeed?	could I be succeeding? could you be succeeding? could he be succeeding? could we be succeeding? could you be succeeding? could they be succeeding?
Perfect	V-ing perfect
could I have succeeded? could you have succeeded? could he have succeeded? could we have succeeded? could you have succeeded? could they have succeeded?	could I have been succeeding? could you have been succeeding? could he have been succeeding? could we have been succeeding? could you have been succeeding? could they have been succeeding?

Interro-negative form

Simple form	V-ing form
couldn't I succeed? couldn't you succeed? couldn't he succeed? couldn't we succeed? couldn't you succeed? couldn't they succeed?	couldn't I be succeeding? couldn't you be succeeding? couldn't he be succeeding? couldn't we be succeeding? couldn't you be succeeding? couldn't they be succeeding?
Perfect	V-ing perfect
couldn't I have succeeded? couldn't you have succeeded? couldn't he have succeeded? couldn't we have succeeded? couldn't you have succeeded? couldn't they have succeeded?	couldn't I have been succeeding? couldn't you have been succeeding? couldn't he have been succeeding? couldn't we have been succeeding? couldn't you have been succeeding? couldn't they have been succeeding?