How to say "most of the time" in Spanish (and the mistake almost everyone makes)
The short answer: "most of the time" is la mayor parte del tiempo, and the word por does not belong anywhere near it. If you have been saying "por la mayoría del tiempo", you have translated an English sentence word by word, and every Spanish speaker can hear it.
The longer answer is more useful, because Spanish actually has two different phrases here and the choice between them follows a rule you can learn in about a minute.
The mistake
English builds it like this: for most of the time. So the instinct is to build the Spanish the same way — por for "for", la mayoría for "most", del tiempo for "of the time".
❌ Por la mayoría del tiempo trabajo desde casa. ✅ La mayor parte del tiempo trabajo desde casa. — Most of the time I work from home.
Two things went wrong. The por is a straight import from English and Spanish does not want it. And la mayoría is the wrong half of the pair.
The rule: can you count it?
This is the whole thing.
Things you count — people, books, days, times, students → la mayoría de
La mayoría de mis amigos viven en Madrid. — Most of my friends live in Madrid. La mayoría de los estudiantes llegan tarde. — Most of the students arrive late.
Things you measure but do not count — time, life, money, work, the day → la mayor parte de
La mayor parte del tiempo estoy en la oficina. — Most of the time I'm in the office. Pasé la mayor parte de mi vida en Granada. — I spent most of my life in Granada. La mayor parte del trabajo ya está hecho. — Most of the work is already done.
It is the same distinction English makes between many and much, applied to a different structure. If you would say many, use la mayoría. If you would say much, use la mayor parte.
The trap: "most of the time" can be both
Here is where it gets genuinely interesting, and where even good textbooks stop too early.
Time is uncountable — so la mayor parte del tiempo. But occasions are countable, and English uses "most of the time" for those too:
La mayor parte del tiempo trabajo desde casa. → Across the whole stretch of my working time, home is where most of it happens.
La mayoría de las veces trabajo desde casa. → Of the individual days I work, most of them are at home.
Both are correct Spanish. They are answering slightly different questions — duration versus frequency — and Spanish makes you pick, which English never does.
If you are unsure which one you mean, you probably mean frequency, and la mayoría de las veces is the safer choice.
What a Spaniard would actually say
Now the part nobody tells you: in everyday speech, we often say neither.
Casi siempre trabajo desde casa. — I almost always work from home.
Casi siempre is shorter, it is what comes out of a Spanish mouth naturally, and it is impossible to get wrong. If you are speaking rather than writing, reach for it first. Save la mayor parte del tiempo for when you specifically want to stress the proportion.
This is a pattern worth internalising beyond this one phrase: the most natural Spanish is very often shorter than the English you are translating from. When your sentence feels heavy, it usually is.
One more thing: does the verb go singular or plural?
La mayoría is grammatically singular, so strict agreement says singular verb:
La mayoría de los estudiantes llega tarde.
But when the phrase is followed by de + plural noun, the plural verb is completely standard and much more common in speech:
La mayoría de los estudiantes llegan tarde.
Both are accepted. Nobody will correct you either way, and I would not spend a second worrying about it.
Quick reference
| English | Spanish | Why |
|---|---|---|
| Most of the time | la mayor parte del tiempo | time is uncountable |
| Most of the time (= usually) | casi siempre | what we actually say |
| Most of the time (= on most occasions) | la mayoría de las veces | occasions are countable |
| Most of my friends | la mayoría de mis amigos | friends are countable |
| Most of my life | la mayor parte de mi vida | a life is one continuous thing |
| Most of the day | la mayor parte del día | duration |
| Most of the days | la mayoría de los días | individual days |
| Most of the work | la mayor parte del trabajo | uncountable |
| Most people | la mayoría de la gente | see below |
That last one deserves a note. La gente is singular in Spanish even though it means many people — so it takes a singular verb: la mayoría de la gente piensa que… This catches English speakers constantly, and it is worth reading about ser and estar and the other places where Spanish and English disagree about what counts as one thing.
Why this one sticks
Of all the calques English speakers bring into Spanish, this is among the ones I hear most — and it survives longer than the others because it is comprehensible. If you say "por la mayoría del tiempo", everyone understands you. Nobody stops the conversation. So the mistake never gets corrected, and it settles in.
That is the quiet problem with learning a language mostly from apps and podcasts: the errors that get fixed are the ones that break communication. The ones that just make you sound foreign can last for years, because being understood feels like being right.
If you want more of these, the article on accent marks that change meaning covers a set that works the same way — small, invisible, and nobody tells you.
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