English verb conjugation
COULD SPEAK. TALK

Regular verb: speak. talk - speak. talked - speak. talked

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I could speak. talk you could speak. talk she could speak. talk we could speak. talk you could speak. talk they could speak. talk	I could be speak. talking you could be speak. talking she could be speak. talking we could be speak. talking you could be speak. talking they could be speak. talking
Perfect	V-ing perfect
I could have speak. talked you could have speak. talked she could have speak. talked we could have speak. talked you could have speak. talked they could have speak. talked	I could have been speak. talking you could have been speak. talking she could have been speak. talking we could have been speak. talking you could have been speak. talking they could have been speak. talking

Negation

Simple form	V-ing form
I could not speak. talk you could not speak. talk she could not speak. talk we could not speak. talk you could not speak. talk they could not speak. talk	I could not be speak. talking you could not be speak. talking she could not be speak. talking we could not be speak. talking you could not be speak. talking they could not be speak. talking
Perfect	V-ing perfect
I could not have speak. talked you could not have speak. talked she could not have speak. talked we could not have speak. talked you could not have speak. talked they could not have speak. talked	I could not have been speak. talking you could not have been speak. talking she could not have been speak. talking we could not have been speak. talking you could not have been speak. talking they could not have been speak. talking

Interrogative form

Simple form	V-ing form
could I speak. talk? could you speak. talk? could she speak. talk? could we speak. talk? could you speak. talk? could they speak. talk?	could I be speak. talking? could you be speak. talking? could she be speak. talking? could we be speak. talking? could you be speak. talking? could they be speak. talking?
Perfect	V-ing perfect
could I have speak. talked? could you have speak. talked? could she have speak. talked? could we have speak. talked? could you have speak. talked? could they have speak. talked?	could I have been speak. talking? could you have been speak. talking? could she have been speak. talking? could we have been speak. talking? could you have been speak. talking? could they have been speak. talking?

Interro-negative form

Simple form	V-ing form
could I not speak. talk? could you not speak. talk? could she not speak. talk? could we not speak. talk? could you not speak. talk? could they not speak. talk?	could I not be speak. talking? could you not be speak. talking? could she not be speak. talking? could we not be speak. talking? could you not be speak. talking? could they not be speak. talking?
Perfect	V-ing perfect
could I not have speak. talked? could you not have speak. talked? could she not have speak. talked? could we not have speak. talked? could you not have speak. talked? could they not have speak. talked?	could I not have been speak. talking? could you not have been speak. talking? could she not have been speak. talking? could we not have been speak. talking? could you not have been speak. talking? could they not have been speak. talking?