Days of the week, months of the year

Módulo 6
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1. Golden Rules

Before learning the words, remember two critical differences between English and Spanish:

  1. Capital Letters are Mandatory: In Spanish, days and months use lowercase (lunes, marzo). In English, they always start with a capital letter:

    • Correct: Monday, March

    • Incorrect: monday, march

  2. The Correct Preposition:

    • Use ON for days and specific dates: I have class on Monday. / My birthday is on July 4th.

    • Use IN for months alone: Halloween is in October.

    • (Avoid saying "the Monday" or "in Monday" — Spanish speakers often translate "el lunes" literally).

  3. In the United States, calendars typically start the week on Sunday.

  4. Tuesday vs. Thursday

    • Tuesday starts with a clean T: "TOOZ-day".

    • Thursday starts with the tongue between the teeth TH: "THURZ-day".

2. Very Important!

Cuando veas una fecha escrita de esta forma en un texto en inglés americano de USA: 12/07/2026, la primera cifra corresponde al MES, la segunda al DÍA y la tercera al AÑO. O sea, esa fecha corresponde a December 7, 2026, NO a July 12, 2026. Ej: 04/09/2020 es April 9, 2020. En cambio, si la fuente está en inglés británico, se interpreta como en español. Ej: en inglés británico, 08/03/2022 es 8 de marzo de 2022.

Formas de armar las fechas

 

Pattern Rule Example Spanish Translation
ON + Day Use on for days of the week I work on Mondays. Trabajo los lunes.
ON + Date Use on for specific calendar dates The party is on October 31st. La fiesta es el 31 de octubre.
IN + Month Use in when mentioning only the month My birthday is in August. Mi cumpleaños es en agosto.
EVERY + Day Singular day, no preposition We play soccer every Saturday. Jugamos fútbol todos los sábados.

Warning for Spanish Speakers: Never say "The meeting is the Tuesday" or "The party is in Friday". Always use on: "The meeting is on Tuesday."

 

Exercise 1: Preposition Check (in or on)

Fill in the blank with the correct preposition (escribir la preposición correcta en el espacio en blanco):

  1. School starts ________ September.

  2. We have an English exam ________ Friday.

  3. Independence Day in the US is ________ July 4th.

  4. It is very cold here ________ January.

  5. She goes to the gym ________ Tuesdays and Thursdays.

 

Exercise 2: Fix the Capitalization & Spelling

Rewrite the sentences correcting all errors (Reescribir la oración corrigiendo las mayúsculas):

  1. my favorite day of the week is wednesday.

     __________________________________________________

  2. We travel to California in august.

     __________________________________________________

  3. see you on tuesday!

    __________________________________________________

  4. His birthday is in march 15th.

    __________________________________________________

 

Exercise 3: Speaking / Pronunciation Drill

Puedes hacer con un compañero este ejercicio para practicar la pronunciación de estas preguntas y respuestas:

  1. "What day is it today?"  "Today is ________." (Check: capitalized day, clean pronunciation).

  2. "What day is tomorrow?"  "Tomorrow is ________."

  3. "When is your birthday?" "My birthday is in [Month]" OR "My birthday is on [Month + Day]".

  4. "Which do you prefer: Tuesday or Thursday?" (Check: contrast between TOOZ-day and THURZ-day).

 

Answer Key (Respuestas)

  • Exercise 1

    1. in (Month alone)

    2. on (Day of the week)

    3. on (Specific date)

    4. in (Month alone)

    5. on (Days of the week)

  • Exercise 2:

    1. My favorite day of the week is Wednesday.

    2. We travel to California in August.

    3. See you on Tuesday!

    4. His birthday is on March 15th. (Correct preposition for a specific date is "on", plus capitalize "March")

More exercises

There are many more exercises at Liveworksheets!

If you want you can practice with a lot of exercises at Liveworksheet. (Recuerda que puedes completar los ejercicios en la misma página web y luego hacer la corrección presionando el botón "Finish!" que se encuentra luego del ejercicio).

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Days of the Week - Months of the year chart