"Do you have a brother?"
Translation:¿Tú tienes un hermano?
In Spanish, you have to agree the verb form depending on what/who is performing the action:
Comer (to eat): yo como, tú comes…
Here's a guide on that: https://forum.duolingo.com/comment/24939344
Tener (to have) is an irregular verb (not only does the ending change, but the root does too): yo tengo, tú tienes…
Here's a guide on tener: https://forum.duolingo.com/comment/24214951
One-syllable words usually don't have an accent mark. However, there are some groups of words that may have, or not, an accent mark depending on their meaning, which are:
|Stressed form||Meaning||Unstressed form||Meaning|
In Spanish, you have to agree verbs (actions) with the subject, just like I am, you are, he is in English.
Tener is irregular, so it does not follow the regular conjugation pattern.
|él, ella, usted||tiene|
|ellos, ellas, ustedes||tienen|
It depends on your device/operating system. Take a look at this page:
There are many others if you do a search.
NOTE: Duo does not mark punctuation