Nor can I

[bmo]

Which ones are correct?

1. John can't sing, nor can I.
2. John can't sing, neither can I.

3. John can't sing, and nor can I.
4. John can't sing, and neither can I.

5. John can't sing and nor can I.
6. John can't sing and neither can I.


Thanks, and happy new year.

[Reemy]

Which ones are correct?

1. John can't sing, nor can I.
2. John can't sing, neither can I.

3. John can't sing, and nor can I.
4. John can't sing, and neither can I.

5. John can't sing and nor can I.
6. John can't sing and neither can I.


Thanks, and happy new year.

Happy New year to you Dear,
the thing that i'm quite sure of is that sentences (1,2),(5,6) are correct, but i find the usage of comma(,) before "and" in sentences #3&4 is unnecessary.