We have been learning to use modal verbs for persuasion .
You must come and see Kensuke’s cave, it is gloomy, spooky and dark.
You shall go to see the magnificent red bananas, they’re amazing – you can find bendy palm trees to climb, so that you can get coconuts.
You have to see the pearl white sand, it is super soft. The sea is warm, so you have to dip your feet in. Keep your clothes in a safe place.