The two main verbs for "become" in Spanish
Become translates to Spanish in two ways, depending on what kind of change you are describing. Ponerse describes a sudden or temporary change in state — usually emotional or physical. Volverse describes a more permanent or gradual change in character or nature. A third verb, llegar a ser, works for changes that take time and effort to achieve, like becoming a doctor or becoming successful.
The difference matters because Spanish speakers expect you to pick the verb that matches the type of change. Using the wrong one sounds unnatural, even if a Spanish speaker understands what you mean. Learning when to use each one will make your Spanish sound more like a native speaker's.
Key Takeaways
- Use ponerse when someone becomes angry, sad, tired, or sick — any quick emotional or physical shift.
- Use volverse when describing a lasting change in personality or character, like becoming mean or becoming wise.
- Use llegar a ser when the change requires time, work, or achievement, such as becoming a lawyer or becoming famous.
- All three verbs are reflexive (ponerse, volverse) or require the preposition "a" (llegar a ser), so the structure is different from English.
Ponerse: sudden emotional and physical changes
Ponerse is a reflexive verb, which means it includes a pronoun (me, te, se, nos, os, se) that refers back to the subject. Use it when someone becomes angry, happy, sad, nervous, tired, sick, or pale — any state that comes on quickly and can change back just as fast.
Examples: "Me puse nervioso" (I became nervous). "Ella se puso furiosa" (She became furious). "Nos pusimos cansados" (We became tired). "Se puso rojo" (He became red — his face turned red). The past tense is "puse," "pusiste," "puso," "pusimos," "pusisteis," "pusieron."
Ponerse works for any temporary state you can see or feel on someone's body or mood. If the change is visible on the outside or happens in the moment, ponerse is usually the right choice. You would not use ponerse to describe becoming a teacher or becoming intelligent, because those are not temporary states that show up on someone's face.
Volverse: lasting changes in character and nature
Volverse is also reflexive and describes a change that sticks — a shift in who someone is or how they behave over time. Use it when someone becomes mean, becomes kind, becomes lazy, becomes ambitious, or becomes wise. These are changes in personality or character, not moods.
Examples: "Se volvió muy amable" (He became very kind). "Ella se volvió insoportable" (She became unbearable). "Nos volvimos más fuertes" (We became stronger — in character or resolve). "Se volvió loco" (He went crazy — or became crazy as a lasting state). The past tense is "volví," "volviste," "volvió," "volvimos," "volvisteis," "volvieron."
The key difference from ponerse is that volverse implies the change is real and lasting. If someone becomes mean and stays mean, you use volverse. If someone becomes angry in the moment, you use ponerse. Volverse can also mean the person has changed so much that they are almost unrecognizable — "Se volvió un desconocido" (He became a stranger).
Llegar a ser: changes that take time and effort
Llegar a ser is not reflexive. It uses the preposition "a" and the infinitive "ser" (to be). Use it when the change requires time, work, study, or achievement. Becoming a doctor, becoming famous, becoming successful, or becoming rich all use llegar a ser because they are not when ready and they require effort.
Examples: "Llegó a ser ingeniero" (He became an engineer). "Ella llegará a ser presidenta" (She will become president). "Llegamos a ser amigos" (We became friends — after time spent together). "Llegó a ser muy respetado" (He became very respected — through his actions over time).
Llegar a ser literally means "to arrive at being," which captures the idea that you travel toward this state over time. You cannot become a lawyer overnight, so you use llegar a ser. You can become angry overnight, so you use ponerse. The structure is simpler than the reflexive verbs because you do not need a reflexive pronoun — just the subject, the verb, "a," and the adjective or noun.
Hacerse: a fourth option for professions and identity
Hacerse is another reflexive verb that means "to become" and is often used interchangeably with llegar a ser, especially for professions and identity. "Se hizo abogada" (She became a lawyer) and "Llegó a ser abogada" both work, though hacerse is slightly more common in everyday speech.
Hacerse can also describe becoming something through your own effort or choice — "Se hizo millonario" (He made himself a millionaire, or became a millionaire through his own work). It carries a sense of agency or deliberate action. For professions, identity, or things you choose or work toward, hacerse and llegar a ser are both correct, and most Spanish speakers will use them interchangeably.
Convertirse en: becoming something completely different
Convertirse en is reflexive and means "to convert into" or "to turn into." Use it when something transforms into something completely different in nature — not just a change in state or character, but a fundamental shift. "La oruga se convirtió en mariposa" (The caterpillar became a butterfly). "El agua se convirtió en hielo" (The water became ice).
Convertirse en is less common in everyday conversation about people becoming things, but it appears in stories, metaphors, and descriptions of dramatic transformation. You would not normally say "Se convirtió en abogada" for becoming a lawyer — that sounds too dramatic. But you might say "Se convirtió en una persona diferente" (He became a completely different person) if the change was radical.
Quick reference table for choosing the right verb
| Type of Change | Verb | Example |
|---|---|---|
| Sudden emotion or physical state (angry, tired, sick, pale) | Ponerse | Se puso furioso (He became furious) |
| Lasting change in character or personality (mean, kind, lazy, wise) | Volverse | Se volvió muy amable (He became very kind) |
| Profession, achievement, or status (lawyer, famous, successful) | Llegar a ser / Hacerse | Llegó a ser ingeniero (He became an engineer) |
| Complete transformation into something different (caterpillar to butterfly) | Convertirse en | Se convirtió en mariposa (It became a butterfly) |
Common mistakes to avoid
The biggest mistake is using ponerse for permanent changes. "Se puso abogado" sounds wrong because becoming a lawyer is not a temporary state you can see on someone's face. Use llegar a ser or hacerse instead.
Another common error is using volverse for temporary emotions. "Se volvió enojado" (He became angry) is grammatically correct but sounds odd — Spanish speakers would say "Se puso enojado." Volverse is for lasting personality shifts, not moods that come and go.
A third mistake is forgetting the reflexive pronoun with ponerse and volverse. You must say "Me puse" (I became), not "Puse me." The pronoun comes before the verb in most cases, or attached to the infinitive if you are using the infinitive form.
Frequently Asked Questions
Can I use "ser" by itself to say "become"?
No. "Ser" means "to be" in a permanent sense. "Soy abogado" means "I am a lawyer" (permanent identity). To express the action of becoming a lawyer, you need llegar a ser, hacerse, or another become verb. Using ser alone leaves out the idea of change.
What is the difference between ponerse and volverse in past tense?
Both are regular in the preterite past tense. Ponerse becomes "puse, pusiste, puso," and volverse becomes "volví, volviste, volvió." The meaning difference stays the same — ponerse for temporary states, volverse for lasting changes. The tense does not change which verb you pick.
Is llegar a ser the same as hacerse?
They are very similar and often interchangeable, especially for professions and achievements. Llegar a ser emphasizes the journey or process, while hacerse emphasizes your own effort or choice. For most everyday sentences, either one works, and native speakers use them both.
Can I use ponerse for becoming rich or becoming famous?
No. Becoming rich or famous takes time and is not a temporary state, so you use llegar a ser or hacerse. "Se hizo rico" (He became rich) or "Llegó a ser famoso" (He became famous) are correct. Ponerse would only work if you meant something like "He became red-faced" or "He became flustered," which is a temporary physical or emotional state.
What does "convertirse en" mean exactly, and when do I use it?
Convertirse en means "to convert into" or "to turn into" and describes a complete transformation into something fundamentally different. Use it for things like caterpillars becoming butterflies, water becoming ice, or metaphorically, someone becoming a completely different person. It is less common in everyday speech than the other verbs.