When entering text in multiple languages, it is a good idea to activate the appropriate keyboard languages to allow smooth text entry on the OnePlus smartphone and to avoid auto-correcting in the wrong language.

When a keyboard language is added, a suitable layout is selected immediately.

Note: To change the keyboard language while typing, simply tap and hold the space and then select the desired language.

Android 10 | OxygenOS 10.0
Step 1:  Open the  Settings
Step 2:  Tap on  System
Step 3:  Tap on  Languages & input
Step 4:  Tap on  Virtual keyboard
Step 5:  Tap on  Gboard
Step 6:  Tap on  Languages
Step 7:  Tap on  Add keyboard
Step 8:  Choose a  language
Step 9:  Tap on  Done
  1. Open the Settings
  2. Tap on System
  3. Tap on Languages & input
  4. Tap on Virtual keyboard
  5. Tap on Gboard
  6. Tap on Languages
  7. Tap on Add keyboard
  8. Choose a language
  9. Tap on Done

OnePlus Instructions