Introduce lists, text or tabular material—Capitalize the first word after the colon only if it is a proper noun or the start of a complete sentence. (Our future is dependent on three things: ...

The colon is probably more useful to you in writing compositions, Chan, as the colon symbol : is used before an explanation about something or to introduce a list. Note these examples below ...

Using a colon to introduce a list and semi-colons ... Radzi and a group of children visit Manchester City Football Club to learn why grammar and punctuation are so important in sports journalism.