The pronoun [this] ([one]) is translated by [este] (masc), [esta] (fem) and [esto] (neuter). Note that in the past the standard spelling for the masculine and feminine pronouns was with an accent ([éste/ésta]). Nowadays the [Real Academia Española] advises that the accented forms are only required where there might otherwise be confusion with the adjectives [este/esta]. The neuter pronoun never carries an accent.
this is the house I was telling you aboutesta es la casa de la que te hablaba;who is this?¿quién es?;what is this?¿qué es esto?;this is newesto es nuevo;this is Mr Brown(in introductions)le presento al señor Brown;(in photo)este es el señor Brown;(on phone)soy or habla el señor Brown;I prefer this to thatprefiero esto a aquello;but this is Aprilpero estamos en abril;this is Fridayhoy es viernes;where did you find this?¿dónde encontraste esto?;this is where I liveaquí vivo;"but he's nearly bald" — "this is it"—pero está casi calvo —ahí está la dificultad
what's all this?¿qué pasa?
what's all this I hear about you leaving?¿qué es eso de que te vas?
do it like thishágalo así
it was like this ...te diré lo que pasó ...
what with this, that and the other I was busy all weekentre una cosa y otra estuve ocupado toda la semana
they sat talking of this and thatsentados, hablaban de esto y lo otro
