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LESSON 19
LESSON 21
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Lesson 20: Preterite vs. Imperfect

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20.1

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Do I Use Preterite or Imperfect?

Understanding how the preterite and imperfect tenses differ is essential to becoming a proficient Spanish speaker. If you’re having trouble distinguishing between the two, don’t sweat it! This is a tricky concept for many Spanish learners. In the following sections, we'll explore the key distinctions between these tenses and provide strategies to help you determine the appropriate usage of each, ensuring you can confidently choose the right tense for any situation.

The preterite and imperfect provide different perspectives on past actions. The preterite emphasizes the beginning, end, or totality of an action, while the imperfect highlights its ongoing nature. This concept, known as aspect, is also clear in English, as seen in the difference between "I drive" and "I am driving" in the present, or "I drove" and "I was driving" in the past.

Definition of the Spanish preterite tense and definition of the Spanish imperfect tense.

When deciding which tense to use, whether in homework, class activities, or everyday conversation, consider the nature of the action you're describing. You may find practice with the following chart helpful when trying to choose between the two:

Flow chart guiding learner through the process of choosing whether to use the Spanish preterite or imperfect tense

In our imperfect lesson, we use the example below to compare the two tenses. Reflect on each verb used and guide yourself through the flowchart. Do you understand why the speaker chose the imperfect or preterite tense for those specific verbs?

Example of the Spanish preterite and imperfect tense used together to define the importance of each Spanish past tense

This illustrates how we use different tenses to convey the nature of actions in the past. The alien's landing, described in the preterite, signifies a completed action - the end of its journey. In contrast, "eating a burrito" is in the imperfect tense, highlighting an ongoing action that was interrupted by the alien's arrival. This example shows how choosing between preterite and imperfect tenses helps us indicate whether an action was completed or ongoing, aiding in crafting a clear narrative. As you advance in Spanish, you'll learn to make these distinctions naturally, shaping your stories with precision.

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Comparing the Preterite and the Imperfect

Some learners appreciate a broad overview that highlights the speaker's choice and emphasis, as we've shown above. However, others may find it more helpful to have specific rules of thumb to compare and contrast the two tenses.

Narrating a completed one-time action vs. Narrating an ongoing action

Example showing the difference between narrating a completed one-time event using the preterite tense and narrating an ongoing event using the imperfect tense

The cat jumping over the fence is a singular, one-time event, making the preterite tense the appropriate choice. Conversely, the cat sleeping in the sun is an ongoing action, thus the imperfect tense is used to convey this continuous aspect.

Narrating a specific action vs. Narrating a habitual action

Example showing the difference between narrating a specific action using the preterite tense and narrating a past habitual action using the imperfect tense

The sighting of the shooting star represents a distinct event that occurred at a specific moment, justifying the use of the preterite tense. On the right, the action described is habitual or repeated without a specified frequency, making the imperfect tense the appropriate choice to convey this ongoing or repeated nature.

Narrating a series of completed one-time actions vs. Narrating multiple simultaneous ongoing actions

Example showing the difference between narrating a series of completed one-time events using the preterite tense and narrating multiple simultaneous ongoing events using the imperfect tense

The actions of the man closing his book and then lighting the fire are sequential, one-time events; therefore, the preterite tense is appropriate. Conversely, the actions of reading and being warmed by the fire occur simultaneously and are ongoing, necessitating the use of the imperfect tense.

Narrating a change of state vs. Narrating an ongoing state

Example showing the difference between narrating a change of state using the preterite tense and narrating an ongoing state using the imperfect tense

The girl on the left experiences a change in her emotional state due to a specific event, warranting the use of the preterite tense to indicate this change. On the right, the girl's happiness is continuous, with no change in her emotional state, thus the imperfect tense is used to describe her ongoing emotion.

Duration with a clear endpoint vs. Duration without a clear endpoint

Example showing the difference between duration with a clear endpoint using the preterite tense and duration without a clear endpoint using the imperfect tense

On the left, the action of traveling has a defined duration of one month, establishing a clear endpoint. This specificity calls for the use of the preterite tense. On the right, the mention of traveling through Europe lacks a definitive timeline or conclusion, making the imperfect tense more suitable to convey the indefinite or ongoing nature of the travel.

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Weird Verbs in the Preterite and the Imperfect

The following verbs undergo a complete change in meaning based on whether they are used in the preterite or imperfect tense. This distinction is a fundamental aspect of Spanish grammar and plays a crucial role in how the past is expressed. Grasping these differences is essential for selecting the appropriate tense and accurately conveying your message in past narratives.

Poder: succeeded vs. could / used to be able to

Examples of how the Spanish verb poder changes meaning from the preterite to the imperfect tense

In the preterite form, poder indicates a specific instance of achieving or succeeding in an action. This contrasts with its imperfect form, which refers to a general ability or possibility in the past, without a specific event in focus.

Querer: tried vs. wanted

Examples of how the Spanish verb querer changes meaning from the preterite to the imperfect tense

The preterite tense of querer implies an attempt or effort, focusing on the action rather than the desire. On the other hand, the imperfect form expresses a past desire or intention, emphasizing the feeling or intention over the specific action.

Saber: found out vs. used to know

Examples of how the Spanish verb saber changes meaning from the preterite to the imperfect tense

Saber in the preterite is used for a specific moment of learning or realization. In contrast, the imperfect form suggests a continuous state of knowledge or awareness over time without pinpointing when this knowledge was acquired.

Conocer: met vs. knew

Examples of how the Spanish verb conocer changes meaning from the preterite to the imperfect tense

In its preterite form, conocer describes a first-time encounter. The imperfect tense indicates an ongoing acquaintance or familiarity, suggesting a prior and continuous relationship.

Mastering the nuances of these verbs in the preterite and imperfect tenses is vital for effective communication in Spanish. It not only ensures precision in conveying past events but also enriches your understanding of the language's subtleties. Remember, the choice of tense can significantly alter the meaning of a verb, highlighting the importance of context and intention in your Spanish conversations.

Click on the following links to review VerbMaster's in-depth lessons on the preterite tense and the imperfect tense!

Practice Time!

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In this session, you’ll practice conjugating ser, ir, and ver in the imperfect tense.
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