1. The film was shown on both BBC1 and BBC2, and on Channel 5.
2. The film will be shown either BBC1 or BBC2, or Channel 5.
3. Can a person be both a girl and a boy?
4. Can a person be both girl and boy?
I am just wondering if the sentences I have written are grammatically correct or not.
However, is it not true that both and either, if we strictly comly with the grammar rules, should be used only with two objects?
How do we handle it when we have three objects?
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.