I am sad.

American Sign Language:
I am http://commtechlab.msu.edu/sites/aslweb/I/W1707.htm
sad. http://commtechlab.msu.edu/sites/aslweb/S/W3453.htm

English:
I am sad.

French:
Je suis triste.

Italian:
Sono triste.

Spanish:
Estoy triste.

Swahili:
Habari yangu ni nzuri.