Using Verb + 'Que'
I can't find an easy way to understand words like Tener que = to have to Evitar que = to prevent
How does the 'que' apply? What is it actually doing?
2 Answers
These are set phrases. You just have to go with it.
Tengo que estudiar mucho para aprender español.
I have to study a lot in order to learn Spanish.
Tengo all by itself is just "I have"
When you add the "que" plus the infinitive you have the "I gotta" or "I have to" construction.
Evitar que gets even more complicated. The next verb has to be in the subjunctive. I could give you a more complete idea in a PM if you wish.
Buena suerte.
I don't know if you are trying to be rude or just frustrated by Spanish by your comment to Daniela, however I will assume the latter. Her answer is the best you're going to get. It would be convenient and easy if languages translated word for word but that's not the case.
Just remember that the expression tener que means "to have to"
It can be worse in other languages. For example, in Japanese the saying "Nice to meet you" literally translates: "First time hang before honorable eyes."