Pretérito v. imperfecto

[newcomer]

Key Words

[words that trigger the preterite or imperfect tense]

Preterite triggers

ayer = yesterday

anteayer = the day before yesterday

anoche = last night

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un día = one day

una semana = one week

un mes = one month

un año = one year

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una vez = one time

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hace un día = one day ago

hace una semana = one week ago

hace un mes = one month ago

hace un año = one year ago

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de repente / de pronto = suddenly

finalmente / por fin = finally

imperfect triggers

usualmente = usually

frecuentemente = frequently

habitualmente = habitually

generalmente = generally

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todos los días = every day

cada día / semana / mes / año = each or every day / week / month / year

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había una vez = once upon a time

en aquella época = back in that time period

siempre = always

por lo general = generally

a menudo (mucho) = often / a lot

de vez en cuando = once in a while

por un rato = for a whlie

durante = during

When to use each tense

[in the absence of triggers / key words]

Preterite uses

  1. When you are using simple past tense.

I learned Spanish v. I was learning Spanish

(PRETERITE) (IMPERFECT)

I rode my bike v. I used to ride my bike

(PRETERITE) (IMPERFECT)

I watched the show v. I used to watch the show

(PRETERITE) (IMPERFECT)


  1. If something actually happened.

I tripped and fell.

(something happened)

She yelled.

(something happened)

He said "OMG"

(something happened)
  1. If you can pinpoint roughly when it started and ended.

I went to Bratislava.

(back in 2009)

I called my mom.

(earlier today)

I walked to school.

(this morning)
  1. If you know how many times you did it.

I broke my leg.

(I know it happened once)

I went to London twice that year.

(I know how many times I went)

imperfect uses

  1. When you want to say "used to" (repeated/habitual actions)

She used to walk to school.

(can't pinpoint when she started or stopped either)

He used to say "tinky" instead of "stinky".

(can't pinpoint when she started or stopped either)
  1. When the subject "was / were ____ing something"

I was reading a book.

(ongoing action in past)

We were learning something new.

(ongoing action in past)
  1. If it's background information (nothing is really happening) or if you can't pinpoint when it started or ended.

It was sunny.

(background/nothing happening)

She was chubby as a child.

(can't pinpoint exactly when)

It was a Saturday in March.

(background/nothing happening)


o t h e r O P T I O N S

[Preterite v. Imperfect]