Ayer tuve un balón is an educational song for Spanish learners.
It uses the verb tener (to have) conjugated past, present and future-- tuve, tengo, y tendré --in the first person only.

Click here for a QuickTime sound file.

Ayer tuve un balón, pero lo perdí. Entonces lo encontré. Lo tengo ahora. ¡Sólo para mí! Entonces lo encontré. Lo tengo ahora. ¡Sólo para mí! ¿Tendré el balón mañana? Yo no sé. ¡Tal vez sí!

Yesterday I had a ball, but I lost it. Then I found it. I have it now. Just for me! Then I found it. I have it now. Just for me! Will I have the ball tomorrow? I don't know. Maybe so!