Resultados posibles:
estabas explicando
-you were explaining
Imperfecto progresivo para el sujetodel verboexplicar.
estabas explicando
-you were explaining
Imperfecto progresivo para el sujetovosdel verboexplicar.

explicar

Ella tenía una duda y tú se lo estabas explicando.
She had a doubt and I was explaining her.
Me estabas explicando los grandes esfuerzos que has hecho.
You were explaining to me the tremendous efforts you have made.
Bueno, me estabas explicando este plan.
Anyway, you were explaining this plan.
Palabra del día
el tejón