Yo- soy
tu- eres
el...- es
nosotros- somos
uds....-son
yo-voy
tu-vas
el...-va
nosotros-vamos
uds.-van
Answer: Mis primos estaban jugando.
Translation: My cousins were playing.
<h2><em>Spymore</em></h2>
Think the blank would be always which is siempre in spanish