It was a pity that you couldn't go to the concert. They played our favorite song.Fue una lástima que no pudieras ir al concierto. Tocaron nuestra canción favorita.
We were in London the same weekend and didn't know. It was a pity that we missed each other.Estábamos en Londres el mismo fin de semana y no sabíamos. Fue una pena no vernos.
It was a pity not to take advantage of that opportunity, so decided accept the offer.Era una lástima no aprovechar aquella oportunidad, así que decidimos aceptar la oferta.