Sometimes I think that sentences like this are Duolingo's way of motivating us.
Well, this is one of the very few sentence from Duolingo that truly deserves my upvote!
Tener - to have
Tengo - I have
Tener que - to have to
Tengo que - I have to
Yes. In Spanish when you say "I have to learn" it's still "tengo que aprender," even though the literal translation to English seems like it has "to" twice. "I have to go to the bank" would be "Tengo que ir al banco."
You have to include the que after tengo to say "I have to" do something. Tengo= I have, tengo que= I have to.
Spanish is the most most most easieat language in the world.......I imagine what if Spanish would be compulsory language in world.....I would enjoy a lot......=> =)
In spanish, que is required with tengo if saying "I have to.." It is required, so unfortunately Tengo aprender mas espanol is not grammatically correct (excuse the lack of accents, this computer doesn't let me add them). A good explanation can be found at https://www.spanishdict.com/answers/295522/tengo-que-clarification
When this is a listening exercise "que" is cut off so quickly that you miss it completely unless you listen to the slow version. I understand that the sentence wouldn't make complete sense without it but give novice language learners a fighting chance!
Basically what I say everytime Duo reminds me that he still has my family in captivity.