Use the Fn key or : If you set an option in Keyboard preferences to change input sources by using the Fn key or (if available on the keyboard), press the key to display a list of your input sources, then continue pressing the key until the input source you want to switch to is selected. To check your settings in Input Sources preferences, choose Apple menu > System Preferences, click Keyboard, then click Input Sources. Use the Caps Lock key: If you set an option in Input Sources preferences to change input sources by using the Caps Lock key or a dedicated language switching key (for example, “ 中 / 英” on Chinese – Pinyin and Chinese – Zhuyin keyboards), press the key to switch between a non-Latin input source (such as Chinese or Korean) and a Latin input source (such as French or English).
You can also press Option-Control-Space bar to select the next input source in the Input menu, or Control-Space bar to select the previous input source. If an input source is dimmed, the current app doesn’t support it. Use the Input menu: Click the Input menu in the menu bar, then choose an input source.
You can also set up your Mac to quickly switch between languages using your keyboard.
Switch between languages when writing by selecting the language you want to use in the Input menu. Connect a wireless keyboard, mouse, or trackpad.Get started with accessibility features.Use Sign in with Apple for apps and websites.Manage cookies and other website data in Safari.View Apple subscriptions for your family.Subscribe to podcast shows and channels.Sync music, books, and more between devices.Send files between devices with AirDrop.Make and receive phone calls on your Mac.Insert photos and documents from iPhone or iPad.Use Continuity to work across Apple devices.Use Live Text to interact with text in a photo.Make it easier to see what’s on the screen.Change the picture for you or others in apps.Install and reinstall apps from the App Store.