They Didn’t in Spanish | Say It The Right Way

The usual Spanish translation is “no hicieron,” though the right choice shifts with subject, region, and sentence context.

If you want to say “they didn’t” in Spanish, the form most learners need first is no hicieron. That works when you mean “they did not” in the simple past and you’re talking about a group. Still, Spanish is not a one-size-fits-all language. The right wording changes with tense, the group you mean, and whether the sentence points to one finished action or an ongoing past action.

That’s where many English speakers get tripped up. English keeps “they didn’t” steady across a lot of contexts. Spanish doesn’t. You may need no hicieron, no hacían, no han hecho, or even ellos no hicieron when you want extra contrast. Once you see the pattern, it starts to click.

What “They Didn’t” Usually Means In Spanish

In everyday Spanish, “they didn’t” most often becomes no hicieron. It comes from the verb hacer in the preterite, which is the tense used for a completed past action.

That makes it the natural pick in lines like these:

• They didn’t call. → No llamaron.
• They didn’t arrive on time. → No llegaron a tiempo.
• They didn’t do the homework. → No hicieron la tarea.

The pattern is simple: no + verb in the past. Spanish places the negative word before the verb, not after an auxiliary like English does. That’s one of the first grammar shifts worth locking in.

Why “No Hicieron” Works So Often

Hicieron is the third-person plural preterite of hacer. If your English sentence could also be read as “they did not do” or “they did not make,” this form is often right on target.

Use it when the action feels finished and boxed in:

• No hicieron nada ayer. — They didn’t do anything yesterday.
• No hicieron el pastel. — They didn’t make the cake.
• No hicieron lo que prometieron. — They didn’t do what they promised.

When You Need The Subject

Spanish often drops subject pronouns. So no hicieron can stand on its own. You add ellos or ellas only when you need contrast or clarity.

Say ellos no hicieron eso if you want to stress that they didn’t do it, while someone else did. If there’s no contrast, the shorter form sounds cleaner.

They Didn’t In Spanish In Real Grammar

The phrase changes when the English sentence points to a different kind of past. That’s why direct word-for-word translation can go sideways. A better move is to ask one question first: What kind of past action am I talking about?

Here are the main paths you’ll run into.

Completed Past Action

Use the preterite when the action is done and tied to a finished moment.

• They didn’t eat. → No comieron.
• They didn’t see it. → No lo vieron.
• They didn’t do it. → No lo hicieron.

Ongoing Or Repeated Past Action

Use the imperfect when you mean “they weren’t doing,” “they used not to,” or “they didn’t used to.”

• They didn’t study much back then. → No estudiaban mucho en esa época.
• They didn’t eat meat as kids. → No comían carne de niños.

This is where many learners reach for the preterite too fast. If the action was repeated, habitual, or part of a background scene, the imperfect often sounds better.

SpanishDict’s tense notes on the preterite vs. imperfect lay out this split in a clear way, and the Real Academia Española’s grammar portal also reflects the same broad use pattern in standard Spanish.

Recent Past With Present Relevance

In parts of Spain, speakers often use the present perfect more often than many Latin American speakers do.

• They haven’t done it. → No lo han hecho.

That sentence is not a straight match for “they didn’t,” yet English speakers often bounce between those ideas. If your real meaning is “they haven’t done it yet,” no lo hicieron is not the best fit.

English Meaning	Best Spanish Form	When It Fits
They didn’t do it	No lo hicieron	One finished past action
They didn’t call	No llamaron	Single completed event
They didn’t use to go	No iban	Repeated or habitual past
They weren’t working	No trabajaban	Ongoing background action
They haven’t done it	No lo han hecho	Past tied to the present
They didn’t tell me	No me dijeron	Completed act of speaking
They didn’t make dinner	No hicieron la cena	Finished action with hacer

How Word Order Changes The Feel

Spanish negatives are refreshingly direct. Put no before the conjugated verb. That’s the core rule. You do not need a helper like “did.”

So this:

• They didn’t arrive → No llegaron

Not this:

• Llegaron no
• No hicieron no

Object pronouns also shift into place before the conjugated verb in standard sentences:

• They didn’t see it. → No lo vieron.
• They didn’t tell me. → No me dijeron.
• They didn’t do it for us. → No lo hicieron por nosotros.

Common Slip-Ups

A few errors show up again and again:

• Using no hicieron for every kind of past, even when the sentence is habitual.
• Keeping the English helper and trying to map “didn’t” word by word.
• Adding the subject every time, which can make the sentence sound heavy.
• Mixing up hicieron and hacen, which shifts the meaning from past to present.

If you want a formal grammar reference, the Real Academia Española entry on “no” is a solid source for standard negative placement, and it lines up with what you’ll hear in normal speech.

Choosing Between Ellos, Ellas, And No Subject

English forces “they” into the sentence. Spanish often leaves it out. That can feel odd at first, yet it makes sense once you notice the verb already carries the subject information.

Use no subject when context is clear:

• No llegaron.
• No dijeron nada.

Use ellos or ellas when contrast matters:

• Ellas no vinieron; ellos sí.
• Ellos no lo hicieron, pero nosotros sí.

This small choice can change the tone. A dropped subject sounds natural and light. A stated subject sounds pointed.

Spanish Form	Natural English Sense	Best Use
No hicieron	They didn’t do it	Neutral statement
Ellos no hicieron	They didn’t do it	Contrast with another group
Ellas no hicieron	They didn’t do it	Female group, contrast or clarity
No hacían	They weren’t doing / didn’t used to do	Habit or ongoing past

Sentence Patterns That Sound Natural

If you want “they didn’t” to come out smoothly, learn it in chunks instead of single words. That keeps you from stopping mid-sentence to build grammar piece by piece.

Useful Patterns

• No + preterite verb: No llegaron
• No + imperfect verb: No salían mucho
• No + object pronoun + verb: No lo entendieron
• Subject + no + verb: Ellos no pagaron

Then swap in the verb you need:

• No pudieron entrar. — They couldn’t get in.
• No quisieron hablar. — They didn’t want to talk.
• No trajeron nada. — They didn’t bring anything.

Mini Context Checks Before You Translate

Run through these fast checks:

1. Was the action one finished event or a repeated past habit?
2. Do I need to stress who “they” is?
3. Am I saying “didn’t” or do I really mean “haven’t”?
4. Does the verb itself change shape in an irregular way?

If you answer those, the translation gets easier fast. The Instituto Cervantes keeps broad learner material on Spanish grammar and usage at Instituto Cervantes resources, which is handy when you want more examples from standard teaching material.

What To Write When You’re Unsure

If you’re stuck and the sentence points to one completed act, start with the cleanest pattern: no + preterite verb. That move will get you a correct answer a lot of the time.

So if your exact target is “they didn’t” and the verb is hacer, write no hicieron. If the verb changes, keep the same shape:

• No fueron — they didn’t go
• No vieron — they didn’t see
• No dijeron — they didn’t say

That gives you a clean base. Then, when the sentence calls for a repeated past or a present-linked meaning, shift tense with intent instead of guessing.