Questions & Answers about Mi hermano es alto y guapo.
How would I use the -ísimo ending from this lesson to say my brother is extremely tall and handsome?
Why do we use es instead of está for this description?
If I were talking about my sister instead of my brother, how would the adjectives change?
Adjectives in Spanish must match the gender of the person they describe. If you were talking about your sister (hermana), you would change the masculine -o endings to feminine -a endings to match: Mi hermana es alta y guapa.