How can I use a semi colon?

Why use them?

The use of a semi-colon in either an exam or in coursework is a great tool to use to show the examiner that you are a confident and apt user of grammar. This may set you apart from other candiates and give your writing a more sophisticated tone.

What are they for?

Semi colons are used to link two independant but closely related sentences if they are not already linked with a conjuction such as 'and' or 'but'. These sentences must be able (in theory) to exist on their own and be separated by a full stop.

Examples

My cat loves killing mice; my mum gets really upset when she does it.

I passed my driving test; I have failed twice befofe.

I walk to school; my friend Pippa drives to school.