Vamos el sábado en la mañana al parque a andar en bicicleta
The missing word would be tiene.
Rafael y Estela han caminado al correo.
That is the most exact translation, it was a <u>periphrasis</u> (conjugated verb + impersonal verb).
<h3><em><u>MissSpanish</u></em></h3>
Hi! your answer: Hola! Me llamo (your name) y tu?
I'll answer you in your other question