Spanish Phrase
Elige una caja que se ajuste bien a tus cosas.
Meaning
The sentence tells someone to pick a box that fits their belongings properly. It emphasizes both the act of choosing and the suitability of the box for the items.
When to use
Use this phrase when you are helping someone pack, moving, or organizing, and you want to stress the importance of selecting a box that matches the size and shape of the items.
✦Grammar Breakdown
Eligeunacajaqueseajustebienatuscosas
Imperative Mood
‘Elige’ is the affirmative imperative form of the verb ‘elegir’, used to give a direct command.
Indefinite Article
‘una’ signals that the speaker is referring to any box, not a specific one.
Relative Clause with Subjunctive
Because the antecedent ‘caja’ is indefinite, the verb in the relative clause takes the subjunctive: ‘se ajuste’.
Reflexive Pronoun ‘se’
‘se’ is part of the pronominal verb ‘ajustarse’, meaning ‘to fit’ or ‘to adapt’.
Adverb Placement
‘bien’ (well) modifies the verb phrase ‘se ajuste’, and it normally appears right after the verb.
Prepositional Phrase
‘a tus cosas’ indicates the object that the box must fit, using the preposition ‘a’.
🗨In Conversation
¿Qué caja debo usar para mis libros y documentos?
Which box should I use for my books and documents?
Elige una caja que se ajuste bien a tus cosas.
Choose a box that fits your things well.
✕Common Mistakes
Elige una caja que se ajusta bien a tus cosas.
The verb should be in the subjunctive (se ajuste) because the antecedent ‘caja’ is indefinite.
Elige una caja que se ajuste a bien tus cosas.
‘Bien’ must modify the verb phrase, not the prepositional phrase; keep the order ‘se ajuste bien a…’.
Elige una caja que se ajusta bien tus cosas.
The preposition ‘a’ is required before ‘tus cosas’.
↔Alternatives
Escoge una caja que se adapte bien a tus pertenencias.
Pick a box that adapts well to your belongings.
Selecciona una caja que sea del tamaño adecuado para tus cosas.
Select a box that is the right size for your things.
Busca una caja que encaje perfectamente con tus objetos.
Look for a box that fits your objects perfectly.
Cultural Tip
In many Spanish‑speaking countries, ‘elegir’ and ‘escoger’ are interchangeable, but ‘elegir’ often sounds a bit more formal. When giving practical advice (like packing), native speakers may prefer ‘escoge’ for a more casual tone. Also, note that the subjunctive in relative clauses (se ajuste) is mandatory when the antecedent is non‑specific, a point that trips many learners.

