To play this video you need to enable JavaScript. You can also use a falling intonation in your question tags when you think you know the answer, but you want to check. For example: Ruby's going to ...
Ahmad Nazri from Malaysia writes: When should we use question tags: have they? / has he? did she? / does it? / do they? are we? / is he? A tag question is a question we can add to the end of a ...