como no vengas.../como no me lo digas...

Warning Examples

Level 5

Use como + present subjunctive to warn someone about the negative consequences of their actions or inaction.

How It Works

The structure como + present subjunctive is a powerful way to issue a warning or a threat in Spanish. It's a type of conditional clause where the condition is presented as something undesirable that will lead to a negative consequence.

Structure:
Como + [verb in present subjunctive] + , + [consequence]

Key points to remember:

  • Meaning of 'Como': In this construction, como does not mean 'like', 'as', or 'how'. It functions as a conditional conjunction similar to 'if', but with a strong emotional charge of a warning.
  • Subjunctive Mood: The verb immediately following como must be in the present subjunctive. This is because the condition is hypothetical and viewed as a negative possibility by the speaker.
  • The Consequence: The main clause, which states the consequence, is typically in the future tense, the present indicative with a future meaning, or the imperative mood.

Comparison with 'Si':
This structure is much stronger than a standard si clause. Compare:

  • Neutral Condition: Si no vienes, me enfadaré. (If you don't come, I'll get angry.) - This is a simple statement of fact.
  • Threat/Warning: Como no vengas, me enfadaré. (If you don't come, I'll get angry.) - This has a clear threatening tone. It implies 'You'd better come, or else...'.

This pattern is very common in spoken Spanish to express frustration, set boundaries, or warn someone emphatically.

Examples (5)

  1. Como no vengas a mi fiesta, no te volveré a hablar.

    If you don't come to my party, I'll never speak to you again.

    Word by Word: As you don't come (subjunctive) to my party, not to you I will speak again.

    A clear threat. 'Vengas' is the present subjunctive of 'venir'. The consequence is in the future tense.

  2. Como no termines la tarea, no sales este fin de semana.

    If you don't finish your homework, you're not going out this weekend.

    Word by Word: As you don't finish (subjunctive) the homework, not you go out this weekend.

    A common warning from a parent. 'Termines' is the subjunctive. The consequence 'no sales' is present indicative used with a future meaning.

  3. ¡Como no me lo digas ahora mismo, me voy a enfadar mucho!

    If you don't tell me right now, I'm going to get very angry!

    Word by Word: As not to me it you tell (subjunctive) right now, I am going to get very angry!

    'Digas' is the subjunctive of 'decir'. The consequence is expressed using the near future 'ir a + infinitive'.

  4. Como sigas haciendo ese ruido, llamaré a la policía.

    If you keep making that noise, I'll call the police.

    Word by Word: As you continue (subjunctive) making that noise, I will call the police.

    This example shows that the verb after 'como' doesn't have to be explicitly negative with 'no'. The action of 'continuing to make noise' is the undesirable condition. 'Sigas' is the subjunctive of 'seguir'.

  5. Como no apruebes el examen, no podrás ir de vacaciones.

    If you don't pass the exam, you won't be able to go on vacation.

    Word by Word: As you don't pass (subjunctive) the exam, not you will be able to go on vacation.

    'Apruebes' is the subjunctive of 'aprobar'. The consequence is a clear negative outcome in the future tense.

Common Mistakes

  • Using the indicative after 'como' when you mean a warning.

    Different MeaningComo no vienes a la fiesta, me enfadaré.
    Como no vengas a la fiesta, me enfadaré.

    'Como no vienes a la fiesta, me enfadaré' is correct and means 'Since you are not coming to the party, I will be angry'. For a warning that depends on the future ('if you don't come'), use the subjunctive: 'Como no vengas'.

  • Confusing this conditional 'como' with 'como' meaning 'because'.

    Como no estudiaste, suspendiste.
    Como no estudies, suspenderás.

    'Como' followed by the indicative expresses a cause or reason ('because'). 'Como' followed by the subjunctive for a future event expresses a threat or warning ('if'). The verb mood completely changes the meaning.

How It Connects

Tap a pattern to see what it builds on and what it leads to.

como no vengas.../como no me lo digas...Level 5Warning Examples

Learn This First

To understand this warning construction, a learner must first be comfortable with the present subjunctive mood, as the 'como' particle triggers it in this context. Additionally, understanding basic negation and how object pronouns are placed is essential for constructing the full phrase.

Words in This Pattern