The main function of a question mark is to indicate a question or query.
1. Use a question mark at the end of all direct questions:
- What is your name?
- How much money did you transfer?
- Did you send euro or dollars?
2. Use a question mark after a tag question:
- You’re French, aren’t you?
- Snow isn’t green, is it?
- He should go and see a doctor, shouldn’t he?
3. Don’t forget to use a question mark at the end of a sentence that really is a direct question:
- How else would I get there, after all?
- What if I said to you, ‘I don’t love you any more’?
- ‘Who knows when I’ll die?’, he asked rhetorically.
4. Do not use a question mark after an indirect or reported question:
- The teacher asked them what their names were. (What are your names?)
- John asked Mary if she loved him. (Do you love me?)
- I’m wondering if she’s coming. (Is she coming?)
5. Be careful with titles and abbreviations when question marks are involved:
- ‘Who’s afraid of Virginia Woolf?’ was a play before it was a film.
- Who’s afraid of Virginia Woolf? was a play before it was a film.
- Have you seen the film ‘Who’s afraid of Virginia Woolf?’?
- Have you seen the film Who’s afraid of Virginia Woolf??
- Have you ever been to L.A.?
Note that there should be no space immediately before a question mark.
Remember point 4:
- ‘Ask yourself if they would be looking at the negatives?’ —this is not a question; it does not end with a question mark.
- But Ask yourself: ‘Would they be looking at the negatives?’ ♥
- ‘Ask yourself how you like to learn?’ Again, this is not a question. Use a full stop.
- But Ask yourself: ‘How do I like to learn?’ ♥
‘Will they be looking at the negatives?’ and ‘How do I like to learn?’ are questions and deserve question marks.