English verb conjugation
COULD CORRESPOND

Regular verb: correspond - corresponded - corresponded

Affirmation

Simple form	V-ing form
I could correspond you could correspond she could correspond we could correspond you could correspond they could correspond	I could be corresponding you could be corresponding she could be corresponding we could be corresponding you could be corresponding they could be corresponding
Perfect	V-ing perfect
I could have corresponded you could have corresponded she could have corresponded we could have corresponded you could have corresponded they could have corresponded	I could have been corresponding you could have been corresponding she could have been corresponding we could have been corresponding you could have been corresponding they could have been corresponding

Negation

Simple form	V-ing form
I couldn't correspond you couldn't correspond she couldn't correspond we couldn't correspond you couldn't correspond they couldn't correspond	I couldn't be corresponding you couldn't be corresponding she couldn't be corresponding we couldn't be corresponding you couldn't be corresponding they couldn't be corresponding
Perfect	V-ing perfect
I couldn't have corresponded you couldn't have corresponded she couldn't have corresponded we couldn't have corresponded you couldn't have corresponded they couldn't have corresponded	I couldn't have been corresponding you couldn't have been corresponding she couldn't have been corresponding we couldn't have been corresponding you couldn't have been corresponding they couldn't have been corresponding

Interrogative form

Simple form	V-ing form
could I correspond? could you correspond? could she correspond? could we correspond? could you correspond? could they correspond?	could I be corresponding? could you be corresponding? could she be corresponding? could we be corresponding? could you be corresponding? could they be corresponding?
Perfect	V-ing perfect
could I have corresponded? could you have corresponded? could she have corresponded? could we have corresponded? could you have corresponded? could they have corresponded?	could I have been corresponding? could you have been corresponding? could she have been corresponding? could we have been corresponding? could you have been corresponding? could they have been corresponding?

Interro-negative form

Simple form	V-ing form
couldn't I correspond? couldn't you correspond? couldn't she correspond? couldn't we correspond? couldn't you correspond? couldn't they correspond?	couldn't I be corresponding? couldn't you be corresponding? couldn't she be corresponding? couldn't we be corresponding? couldn't you be corresponding? couldn't they be corresponding?
Perfect	V-ing perfect
couldn't I have corresponded? couldn't you have corresponded? couldn't she have corresponded? couldn't we have corresponded? couldn't you have corresponded? couldn't they have corresponded?	couldn't I have been corresponding? couldn't you have been corresponding? couldn't she have been corresponding? couldn't we have been corresponding? couldn't you have been corresponding? couldn't they have been corresponding?