Click on the Play button to hear a message from Anne.
Some sentences start with one word, before the subject of the sentence appears. To help the reader to identify these additional words, close them with a comma.
Yes, I do need you to clean your bedroom.
Well, I never thought your mother liked me.
There may be two or three words in the opening phrase. Again, as an aid to the reader, close the phrase with a comma.
To apply, you need teaching experience.
On 14 March, we are to be wed.
Sometimes, the opening phrase is quite long. A comma will make it clear to the reader.
If you’re not sure where to go, let me know.
Notice that you don’t need the comma if the sentence is constructed differently.
Let me know if you are not sure where to go.