I can correspond you can correspond he can correspond we can correspond you can correspond they can correspond
V-ing form
I can be corresponding you can be corresponding he can be corresponding we can be corresponding you can be corresponding they can be corresponding
Perfect
I can have corresponded you can have corresponded he can have corresponded we can have corresponded you can have corresponded they can have corresponded
V-ing perfect
I can have been corresponding you can have been corresponding he can have been corresponding we can have been corresponding you can have been corresponding they can have been corresponding
Negation
Simple form
I can't correspond you can't correspond he can't correspond we can't correspond you can't correspond they can't correspond
V-ing form
I can't be corresponding you can't be corresponding he can't be corresponding we can't be corresponding you can't be corresponding they can't be corresponding
Perfect
I can't have corresponded you can't have corresponded he can't have corresponded we can't have corresponded you can't have corresponded they can't have corresponded
V-ing perfect
I can't have been corresponding you can't have been corresponding he can't have been corresponding we can't have been corresponding you can't have been corresponding they can't have been corresponding
Interrogative form
Simple form
can I correspond? can you correspond? can he correspond? can we correspond? can you correspond? can they correspond?
V-ing form
can I be corresponding? can you be corresponding? can he be corresponding? can we be corresponding? can you be corresponding? can they be corresponding?
Perfect
can I have corresponded? can you have corresponded? can he have corresponded? can we have corresponded? can you have corresponded? can they have corresponded?
V-ing perfect
can I have been corresponding? can you have been corresponding? can he have been corresponding? can we have been corresponding? can you have been corresponding? can they have been corresponding?
Interro-negative form
Simple form
can't I correspond? can't you correspond? can't he correspond? can't we correspond? can't you correspond? can't they correspond?
V-ing form
can't I be corresponding? can't you be corresponding? can't he be corresponding? can't we be corresponding? can't you be corresponding? can't they be corresponding?
Perfect
can't I have corresponded? can't you have corresponded? can't he have corresponded? can't we have corresponded? can't you have corresponded? can't they have corresponded?
V-ing perfect
can't I have been corresponding? can't you have been corresponding? can't he have been corresponding? can't we have been corresponding? can't you have been corresponding? can't they have been corresponding?