There are several different key combinations you can use to boot in Recovery mode depending on what you want to do, we detail these below. Depending on what you want to do with macOS Recovery ...

which features recovery options for reinstalling macOS, as well as options to boot as normal, shut down, and restart. Apple is also replacing Target Disk Mode, which is used to transfer data ...

When starting up your Mac, you might want to choose a different Startup Disk, boot into Recovery mode, into a Boot Camp Windows volume, or use one of Apple's built-in Mac utilities. Startup key ...