How to Say "to alter" in Spanish
The most common Spanish word for “to alter” is “cambiar” — use 'cambiar' when referring to something becoming different or undergoing a general transformation.
cambiar
kahm-bee-AHRkamˈbjaɾ
Examples
El tiempo cambia muy rápido en la montaña.
The weather changes very quickly in the mountains.
Las cosas han cambiado mucho desde que éramos niños.
Things have changed a lot since we were kids.
Mi hermano cambió de opinión y ahora quiere venir.
My brother changed his mind and now he wants to come.
Changing Your Mind, Job, etc.
To say you're changing something like your mind, job, or house, use the pattern 'cambiar de + [noun]'. For example, 'Voy a cambiar de trabajo' (I'm going to change jobs). You don't need to say 'mi trabajo'.
Changing Clothes: 'cambiar' vs. 'cambiarse'
Mistake: “Voy a cambiar mi ropa.”
Correction: Voy a cambiarme de ropa. When you're changing your own clothes, you almost always use 'cambiarse'. Think of it like 'to change oneself'.
variar
bah-ree-AHRbaˈɾjaɾ
Examples
Tienes que variar tu dieta para estar sano.
You have to vary your diet to be healthy.
Los precios varían según la temporada.
Prices vary depending on the season.
Ella decidió variar el diseño original del vestido.
She decided to alter the original design of the dress.
The Accent Mark Rule
Notice that the 'i' gets an accent mark (varío, varía) in many present tense forms. This is to make sure you pronounce the 'i' clearly instead of blending it into the next vowel.
Using 'de' with Variar
When you want to say you are changing something specific, like your opinion or your route, you often use the word 'de' after the verb: 'variar de opinión'.
Missing the Accent
Mistake: “Yo vario el plan.”
Correction: Yo varío el plan. Without the accent on the 'i', the pronunciation changes completely.
Variar vs. Cambiar
Mistake: “Quiero variar mis dólares por pesos.”
Correction: Quiero cambiar mis dólares por pesos. Use 'cambiar' for exchanging things; use 'variar' for making something different or diverse.
modificar
mo-dee-fee-KARmodifiˈkaɾ
Examples
Necesitamos modificar el contrato antes de firmar.
We need to modify the contract before signing.
El arquitecto modificó los planos para incluir un balcón.
The architect altered the plans to include a balcony.
He modificado mi dieta para tener más energía.
I have adjusted my diet to have more energy.
The 'C' to 'QU' Spelling Swap
When a verb ends in -car, the 'c' changes to 'qu' when followed by an 'e'. This keeps the 'K' sound. You'll see this in the first person past tense (modifiqué) and whenever you use the special forms for wishes or commands (modifique).
No extra words needed
Unlike English where we often 'modify' something 'to' something else, in Spanish you just 'modify [thing]'. You don't need a preposition like 'a' before the object.
Don't use it for clothes!
Mistake: “Me voy a modificar para la fiesta.”
Correction: Me voy a cambiar para la fiesta. (Use 'cambiar' for changing clothes; 'modificar' is for changing the design or structure of the clothes themselves.)
General Change vs. Specific Alteration
Related Translations
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