Conjunctions join together two different, but related, parts of a sentence. They can be words like 'and', 'but', 'if', 'when', and 'because'. For example: I like swimming and she likes dancing.

When we write a sentence we always use a capital letter at the start and punctuation at the end (usually a full stop). For example: This is an example of how to use capital letters and full stops. We ...