We just learned that I am happy in German is Ich bin glücklich.
Now let's learn how to say You are sad.
Sie sind traurig
We can break it up into three words:
You - Sie - sounds like zee /?/
are - sind - sounds like zin /?/
sad - traurig - Sounds like tuh-ow-uh-ee-hh /?/
So all together Sie sind traurig sounds like zee zin tuh-ow-uh-ee-hh.
(from: wikipedia - Goethe Institute)
Do you remember how to say it in Spanish?
Estas triste
Do you remember how to say it in French?
Vous êtes triste