English verb conjugation
COULD SPEAK

Irregular verb: speak - spoke - spoken, spoke

Affirmation

Simple form	V-ing form
I could speak you could speak he could speak we could speak you could speak they could speak	I could be speaking you could be speaking he could be speaking we could be speaking you could be speaking they could be speaking
Perfect	V-ing perfect
I could have spoken, spoke you could have spoken, spoke he could have spoken, spoke we could have spoken, spoke you could have spoken, spoke they could have spoken, spoke	I could have been speaking you could have been speaking he could have been speaking we could have been speaking you could have been speaking they could have been speaking

Negation

Simple form	V-ing form
I couldn't speak you couldn't speak he couldn't speak we couldn't speak you couldn't speak they couldn't speak	I couldn't be speaking you couldn't be speaking he couldn't be speaking we couldn't be speaking you couldn't be speaking they couldn't be speaking
Perfect	V-ing perfect
I couldn't have spoken, spoke you couldn't have spoken, spoke he couldn't have spoken, spoke we couldn't have spoken, spoke you couldn't have spoken, spoke they couldn't have spoken, spoke	I couldn't have been speaking you couldn't have been speaking he couldn't have been speaking we couldn't have been speaking you couldn't have been speaking they couldn't have been speaking

Interrogative form

Simple form	V-ing form
could I speak? could you speak? could he speak? could we speak? could you speak? could they speak?	could I be speaking? could you be speaking? could he be speaking? could we be speaking? could you be speaking? could they be speaking?
Perfect	V-ing perfect
could I have spoken, spoke? could you have spoken, spoke? could he have spoken, spoke? could we have spoken, spoke? could you have spoken, spoke? could they have spoken, spoke?	could I have been speaking? could you have been speaking? could he have been speaking? could we have been speaking? could you have been speaking? could they have been speaking?

Interro-negative form

Simple form	V-ing form
couldn't I speak? couldn't you speak? couldn't he speak? couldn't we speak? couldn't you speak? couldn't they speak?	couldn't I be speaking? couldn't you be speaking? couldn't he be speaking? couldn't we be speaking? couldn't you be speaking? couldn't they be speaking?
Perfect	V-ing perfect
couldn't I have spoken, spoke? couldn't you have spoken, spoke? couldn't he have spoken, spoke? couldn't we have spoken, spoke? couldn't you have spoken, spoke? couldn't they have spoken, spoke?	couldn't I have been speaking? couldn't you have been speaking? couldn't he have been speaking? couldn't we have been speaking? couldn't you have been speaking? couldn't they have been speaking?