me compré una bicicleta = I have bought a bicycle
me duró tres días = I had it three days
me la robaron = it was stolen from me
me fui mi triste a casa, sin mi bicicleta = I went home sad without my bicycle

Grammar: grammar/chapter6_tenses/6_4_formation_indefinido.htm

roja, bonita, de paseo = red, beautiful, a touring bike
esta mañana he salido = this morning I left

Grammar:
Pretérito perfecto: grammar/chapter7_compound_tenses/7_3_formation_perfecto_plusquamfercto_anterior.htm

caminando, de paseo = walking, to take a round

Grammar:
Gerundio: grammar/chapter8_ser_estar_gerund_passive/8_11_gerund.htm

y la he encontrado = and I have found it again
aquí está mi bicicleta = there it is, my bicycle
no me la habían robado = I had not been stolen
se me había olvidado = I had forgotten about it