"Do you speak the language?"
Hol = language Da- = You (verb) It/he/she/them jatlh = speak -'a' = Is it true?
This is covered in the Tips & Notes. If you have not been reading the Tips & Notes, I would like to ask that you review those before asking your question here so we don’t have to continuously repeat the information that we have explained there. If you have read them and still have a question, please be more specific in your question so we can figure out where the confusion is.
If you are doing the course on iOS or Android, you cannot currently access the Tips & Notes through the app. To access the Tips & Notes, you will have to access the course using a web browser at https://www.duolingo.com/, either from your mobile device or from a computer. When you click on a Skill, it will expand to reveal a Start button and a light bulb. If you click on the light bulb it will reveal the Tips & Notes and give you a detailed explanation of the grammar that is introduced in that Skill. If you still have questions after reading the Tips & Notes for the previous and current Skills, then please ask your question again, explaining what you didn’t understand or what seems contradictory to you.