ENGLISH AURORA
THE GRAMMAR BATTLEGROUND · CORE CONTRASTS

Stop Confusing What English Strictly Separates

The 6 greatest dilemmas that cause 80% of mistakes for Spanish speakers — explained with clear pragmatic logic, Spanish interference warnings, and interactive discrimination quizzes.

Battle 01 · Verb Tenses

Past Simple vs Present Perfect

B1 CEFR Core

Past Simple

Action is finished and belongs to a closed time window that has zero connection to right now.

  • I lived in Cartagena in 2021. (I don't live there now)
  • Ben bought a camera yesterday. (Specific finished moment)
  • Did you see Sofía this morning? (Said at 3:00 PM)

Present Perfect

Action connects to the present: either the time window is still open (today, this year) or it is an unfinished life experience.

  • I have lived here for 3 years. (I STILL live here today)
  • Kenji has visited London twice. (In his life so far)
  • Have you seen Sofía this morning? (Said at 10:00 AM)
⚠️ Hispanic Speaker Trap
In Spanish, we naturally say "Esta mañana me he tomado un café" or "Ayer he visto una película". In English, the moment you mention a finished time (yesterday, last week, ago, in 2020), Present Perfect is strictly forbidden. You must use Past Simple: "I saw a film yesterday".
⚡ Interactive Discrimination Quiz 4 Challenges
1. Ben ___ to Cartagena two weeks ago.
2. Sofía and Kenji ___ in this neighborhood since 2022 (and they love it).
3. "___ an authentic Colombian arepa?" — "Yes, twice!"
4. I ___ my masterclass report at five o'clock yesterday afternoon.
Battle 02 · Future Express

Will vs Be Going To

B1 CEFR Core

Will

Instant spontaneous decisions made at the moment of speaking, promises, offers, or personal opinions.

  • "The phone is ringing!" — "I will answer it!"
  • I promise I will never forget your advice.
  • I think humans will visit Mars one day.

Be Going To

Pre-meditated plans & intentions decided prior to speaking, or predictions based on current visual evidence.

  • Sofía bought tickets. She is going to fly to London.
  • Look at those black storm clouds! It is going to rain.
  • I am going to study Japanese next semester.
⚠️ Hispanic Speaker Trap
In Spanish, we use "voy a" for almost everything. When someone asks for help in a restaurant, a Spanish speaker might say "Wait, I am going to help you" (*sounds premeditated and weird). In English, an instant reaction MUST be "I will help you!" or "I'll carry that for you!".
⚡ Interactive Discrimination Quiz 3 Challenges
1. "Someone is knocking at the door." — "Sit down, I ___ it."
2. Watch out! That precarious shelf ___ over!
3. I enrolled in the academy last Friday. I ___ classes next Monday.
Battle 03 · Essential Collocations

Make vs Do

A2–B2 Core

MAKE (Creating & Producing)

Used when building, creating, generating, or causing a tangible result or reaction.

  • Make coffee / breakfast / dinner
  • Make a mistake / a decision / an excuse
  • Make money / friends / progress

DO (Actions & Obligations)

Used for tasks, jobs, duties, routines, and indefinite general actions with nothing created.

  • Do homework / chores / the dishes
  • Do business / research / an exercise
  • Do your best / a favor / nothing
⚠️ Hispanic Speaker Trap
Spanish has only one word for both: "Hacer" (Hacer la cama = Make the bed; Hacer la tarea = Do homework; Hacer un error = Make a mistake). Remember the rule of thumb: If you create or build something new, MAKE it; if you perform a routine task, DO it!
⚡ Interactive Discrimination Quiz 3 Challenges
1. Kenji realized he had ___ a silly calculation mistake.
2. Could you please ___ me a quick favor?
3. We need to ___ an important business decision before Friday.
Battle 04 · Time Measurement

Since vs For

A2–B1 Core

SINCE (Point in Time)

Answers: "When did the clock start ticking?" Followed by a specific date, day, hour, or past event.

  • since 9:00 AM / Monday / July
  • since 2018 / childhood / I was born
  • since Sofía arrived at the airport

FOR (Duration Period)

Answers: "How long did it last?" Followed by a quantity of time (seconds, days, centuries).

  • for 20 minutes / 4 hours / three days
  • for six months / 10 years / a long time
  • for centuries / decades
⚠️ Hispanic Speaker Trap
Spanish speakers frequently confuse "desde" (since) with "desde hace / por" (for). In English, never say "since 3 years" (*incorrect!). Say "for 3 years" (duration) or "since 2023" (starting point).
⚡ Interactive Discrimination Quiz 3 Challenges
1. Abuela Carmen has been making arepas ___ over forty years.
2. Ben hasn't checked his email ___ last Thursday.