Here are some examples:
bind m <key> "say guards!"
bind m <key> "say /shout Hello kingdom people!"
bind m <key> "say /vil Hello village people!"
bind m <key> "say /t <name> Enemies in local run awayyyy!" You may also choose to change your bindings like /sleep to different keys bind <key> "say /sleep"
To list all key binds use the console command