Milestone 6: Core Past Tenses

What You Can Do Now

You control the three core past tenses in Spanish:

• Pretérito Perfecto
• Pretérito Indefinido
• Pretérito Imperfecto

The Full System

1. Pretérito Perfecto

Past connected to the present

• Hoy he trabajado.
• Ya he terminado.

2. Pretérito Indefinido

Completed actions in a finished time

• Ayer trabajé.
• Terminé el proyecto.

3. Pretérito Imperfecto

Background, habits, and ongoing past

• Trabajaba todos los días.
• Era un día frío.

Combined Use

These tenses are often used together:

• Vivía en Madrid cuando conocí a Ana.

vivía -> background (imperfecto) conocí -> event (indefinido)

Narrative Structure

Storytelling follows a pattern:

1. Imperfecto -> describe the situation 2. Indefinido -> introduce actions/events 3. Perfecto -> connect to present (optional)

Example:

• Era de noche. (background)
• Caminaba por la calle. (ongoing)
• De repente, apareció un hombre. (event)

Time Logic Overview

Key Insight

Spanish past is not one tense.

It is a system of perspectives:

• result (perfecto)
• event (indefinido)
• state (imperfecto)

Full Comparison Table

Decision Framework

1. Is the time period finished?

-> Yes -> Indefinido -> No -> Perfecto

2. Is it a repeated or habitual action?

-> Yes -> Imperfecto

3. Is it a description or background?

-> Yes -> Imperfecto

4. Is it a result relevant now?

-> Yes -> Perfecto

Combined Example

• Ayer estaba en casa cuando llegó Juan.

estaba -> background llegó -> event

Extended Example

• Hoy he trabajado mucho porque ayer no trabajé.

he trabajado -> today (open) trabajé -> yesterday (closed)

Common Mistakes

• mixing time markers -> ayer he trabajado ❌
• using imperfecto for single event -> llegaba ❌
• using indefinido for habits -> trabajé siempre ❌

Cognitive Model

Perfecto = link to present Indefinido = completed action Imperfecto = state / repetition / background

Pattern Check

Final Insight

You now understand past as a system, not isolated forms.

This is a major step toward fluency.

Summary

1. Three past perspectives 2. Clear decision rules 3. Often combined in real speech 4. Essential for storytelling and conversation

This milestone completes the core Spanish past tense system.