Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could redate you could redate she could redate we could redate you could redate they could redate
V-ing form
I could be redating you could be redating she could be redating we could be redating you could be redating they could be redating
Perfect
I could have redated you could have redated she could have redated we could have redated you could have redated they could have redated
V-ing perfect
I could have been redating you could have been redating she could have been redating we could have been redating you could have been redating they could have been redating
Negation
Simple form
I could not redate you could not redate she could not redate we could not redate you could not redate they could not redate
V-ing form
I could not be redating you could not be redating she could not be redating we could not be redating you could not be redating they could not be redating
Perfect
I could not have redated you could not have redated she could not have redated we could not have redated you could not have redated they could not have redated
V-ing perfect
I could not have been redating you could not have been redating she could not have been redating we could not have been redating you could not have been redating they could not have been redating
Interrogative form
Simple form
could I redate? could you redate? could she redate? could we redate? could you redate? could they redate?
V-ing form
could I be redating? could you be redating? could she be redating? could we be redating? could you be redating? could they be redating?
Perfect
could I have redated? could you have redated? could she have redated? could we have redated? could you have redated? could they have redated?
V-ing perfect
could I have been redating? could you have been redating? could she have been redating? could we have been redating? could you have been redating? could they have been redating?
Interro-negative form
Simple form
could I not redate? could you not redate? could she not redate? could we not redate? could you not redate? could they not redate?
V-ing form
could I not be redating? could you not be redating? could she not be redating? could we not be redating? could you not be redating? could they not be redating?
Perfect
could I not have redated? could you not have redated? could she not have redated? could we not have redated? could you not have redated? could they not have redated?
V-ing perfect
could I not have been redating? could you not have been redating? could she not have been redating? could we not have been redating? could you not have been redating? could they not have been redating?