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Hola chic@s,

I was recently covering this with a student of mine in one of our sessions.

What’s the difference between the preterite and imperfect tense in Spanish?

This confuses a lot of learners and I sometimes still have to refresh my memory on this.

So let’s cover this today in as simple a way as possible.

We’ll start with the preterite tense, then move onto the imperfect tense before wrapping things up with a side-by-side comparison to hopefully make things crystal clear.

Remember, you can always practice these conjugations for free in the Chat Spanish Verb Lab 🧪

Go crazy.

As always, any questions or support please email me.

Un abrazo,
Harrison



1) The Preterite Tense

The preterite tense is one of the 
two simple past tenses in Spanish, alongside the imperfect tense (which we’ll look at next).

You’re going to use the preterite tense to talk about completed actions that happened in the past.

Completion. That’s the word we associate with the preterite tense.

Things that have happened.

Like the present tense, the preterite tense has regular verbs and irregular verbs.

Again, we’ll start with regular verbs, which follow predictable patterns based on their -AR, -IR or -ER endings.


Regular Verb Conjugations in the Preterite Tense

AR Verbs 👉 Drop the -AR and add 
-é, -aste, -ó, -amos, -asteis, -aron


IR Verbs 👉 Drop the -IR and add 
-í, -iste, -ió, -imos, -isteis, -ieron
ER Verbs 👉 Drop the -ER and add 
-í, -iste, -ió, -imos, -isteis, -ieron

(Yes the endings for -IR and -ER verbs are the same). 

Irregular Verb Conjugations in the Preterite Tense

Let’s look at some of the most common irregular verb conjugations now in the preterite tense. 

So there are some patterns that we 
can remember: 



U-stem verbs

tener 👉 tuve

estar 👉 estuve 

poder 👉 pude

I-stem verbs
hacer 👉 hice

querer 👉 quise

venir 👉 vine


J-stem verbs
decir 👉 dije

traer 👉 traje
conducir 👉 conduje



Like the present tense, there are 
some verbs that are irregular 
in the first-person singular ‘yo’ form. 



I’ve made the ‘yo’ forms bold to show you the irregular spelling. 


‘Qué’ endings


‘Gué’ endings

‘-CÉ’ endings


One beautiful thing about all irregular verbs in the preterite tense is that they never have tildes (accent marks) 
on their endings 🙏 

The other important thing that stands out about irregular verbs in the preterite tense is that SER and IR 
are conjugated the same 👇


Similar to the ‘nosotros’ form in the preterite tense being exactly the same as the present tense, you’ll be able 
to distinguish if it’s ‘Ser’ or ‘Ir’ from 
the context of the conversation. 



Right, let’s look at when you’re going 
to use the preterite tense in Spanish with some cracking examples 😘 



Remember, the preterite is related 
to completion. 

Actions that have been completed 
in the past.

There are some nuances as we’ll see, but all the examples are tied together by this idea of completion. 




Completed Events

Something that happened once 
and then was over. 

e.j Fui a Nicaragua

I went to Nicaragua



e.j Ayer cocinamos todos juntos

Yesterday we cooked all together 


Actions with a clear start and end

There are clear time boundaries involved. 

e.j Dormí 9 horas anoche

I slept 9 hours last night


e.j Carmen estudió desde las 4 hasta las 9

Carmen studied from 4 to 9


Sequenced Events

A series of actions that took place 
in a sequence.

e.j Me levanté, me duché y desayuné
I woke up, showered and had breakfast


e.j Fuimos al cine y comimos helado
We went to the cinema and ate ice cream


Specific Dates and Times

Past events that took place on a specific date/time or for specific time periods.

e.j Viví en Madrid por seis meses

I lived in Madrid for 6 months



e.j El terremoto ocurrió en 2017

The earthquake happened in 2017



Let’s look at some common phrases that trigger the use of the preterite tense.

This is because they refer to specific points in time when an action was completed: 


Ayer - Yesterday
Anoche - Last night
Anteayer - Day before yesterday
La semana pasada - Last week
El año pasado - Last year
Hace dos días - Two days ago
Hace una semana - One week ago
Una vez - One time/Once 


Preterite Tense Summary

That’s the preterite tense done and dusted. Let’s look at a few 🔑’s now:



🔑 The preterite tense is all about completion. 

🔑 Remember the regular verb endings. For -AR verbs (-é, -aste, -ó, -amos, 
-asteis, -aron). For -ER and -IR verbs 
(-í, -iste, -ió, -imos, -isteis, -ieron).


🔑 The nosotros form of the preterite looks the same as the present tense, so we need to understand the context to tell them apart.

🔑 Be aware of the irregular verb forms in the preterite tense and enjoy the fact that they don’t have any tildes (accent marks). 

🔑 We can use time markers to trigger the preterite tense. e.g ayer, anoche, 
la semana pasada, hace dos días etc…



2) Imperfect Tense

The imperfect tense is the second 
of the two simple past tenses 
in Spanish, alongside the preterite tense (which we’ve just seen).

The imperfect tense is used for describing ongoing or repeated actions in the past without 
a clear end.

That’s why it’s called the imperfect, because it’s incomplete.

As expected, the imperfect tense 
has regular verbs and irregular verbs.



Let’s start with the regular verbs.


Regular Verb Conjugations in the Imperfect Tense

(Trying to pronounce ‘hablábamos’ 
is always fun 😉)

AR Verbs 👉 Drop the -AR and add 
-aba, -abas, -aba, -ábamos, -abais, 
-aban

IR Verbs 👉 Drop the -IR and add 
-ía, -ías, -ía, -íamos, -íais, -ían
ER Verbs 👉 Drop the -ER and add 
-ía, -ías, -ía, -íamos, -íais, -ían



The endings for -IR and -ER verbs 
are the same 👍



Remember, subject pronouns are typically left out when speaking Spanish. So you’ll hear ‘hablaba’ 
and wonder if it’s ‘yo’ or ‘él/ella/usted’.

Again, you’ll have to rely on the context to figure it out. 


Irregular Verb Conjugations in the Imperfect Tense

Count your lucky estrellas ⭐️, 
the imperfect tense only has 
three irregular verb conjugations:

So the imperfect tense is used for describing ongoing or repeated actions in the past without a clear end. 



Let’s now look at some examples to understand what this actually means👇

e.j Cuando Juan era niño, jugaba al fútbol en el parque

When Juan was a boy, he used to play football in the park

This is describing an action in the past, without a clear ending - so it’s ongoing. 

e.j Hacía calor y el sol brillabaIt was hot and the sun was shining


Again, describing how things were without a definite ending.

Also notice how the imperfect tense can be translated as ‘used’ to 
or ‘was’.

Similar to the preterite tense, the imperfect tense has some common phrases that trigger its usage. 



This is because they describe ongoing or repeated actions in the past. 

A menudo - Often

A veces - Sometimes

Cada día - Everyday

De vez en cuando - Once in a while

Frecuentemente - Frequently

Siempre - Always

Todos los días - Every day 

Por un rato - For a while




Imperfect Tense Summary

Let’s look at the 🔑’s to the Imperfect Tense then:



🔑 The Imperfect Tense is used to describe ongoing, repeated or habitual actions in the past without 
a clear end.

🔑 The regular verb endings. For -AR verbs (-aba, -abas, -aba, -ábamos, 
-abais, -aban). For -ER and -IR verbs 
(-ía, -ías, -ía, -íamos, -íais, -ían). 


🔑 There are only three irregular verbs in the imperfect tense. Ir, Ser and Ver. 

🔑 Like the preterite, the imperfect tense can also be triggered by certain time markers. e.j a menudo, a veces, cada día, siempre, todos los días, por un rato etc…


3) Preterite Tense vs Imperfect Tense

We’ve just covered both of these simple tenses individually, but I want 
to do a side by side comparison because I think it will be helpful 
to reinforce the difference. 


Preterite 👉 for completed actions in the past. 


Ask ‘what happened?’ and you’ll know to use the preterite tense. 

Imperfect 👉 for describing ongoing or repeated actions in the past without a clear end.
Ask ‘how things were?’ and you’ll know to use the imperfect tense. 



Now let’s look at some side by side ejemplos👇

Preterite

e.j Miguel trabajó en la peluquería 

Miguel worked at the hairdressers



A one time action completed in the past. 


Imperfect

e.j Miguel trabajaba en la peluquería 

Miguel used to work at the hairdressers 



Describing a habitual past action.




Preterite + Imperfect

e.j Cocinábamos cuando llegó mi hermano

We were cooking when my brother arrived

It’s not uncommon that you’ll hear both the preterite and imperfect tense in the same sentence. 

Often, the imperfect will set the scene (cocinábamos) and the preterite will be the interrupting event (llegó). 

Although sometimes you’ll see the preterite come first:

e.j Ayer fui al supermercado, pero no había leche

Yesterday I went to the supermarket, but there was no milk


Another way of remembering if you should use the preterite or imperfect tense is by asking:



“Is this a snapshot or a movie?”

If it’s a snapshot (single completed event) 👉 Preterite Tense



If it’s a movie (continuous action) 
👉 Imperfect Tense



I hope these examples have cleared up the differences, this does take some practice getting used to. 



So give yourself some grace along 
the way. 



So there we go chic@s.

I hope you found that helpful.

As I said at the beginning, feel free to reach out if you have any questions or just need some support on your Spanish journey.

I’m also currently have a few free spots open for coaching.

You can find out the details here.

Harrison

Spanish for living, not just learning

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