The Imperative Mood: Informal Commands (Tú - Affirmative and Negative)

Welcome to our lesson on the Imperative Mood! This is the mood you use to give commands, instructions, or friendly advice in Spanish. Today, we'll focus specifically on the informal commands you give to a friend or someone you address as 'tú'.

In Spanish, telling a friend what to do and telling them what not to do require two different grammatical structures. Let's explore them one by one.

✅ Affirmative 'Tú' Commands (Positive Instructions)

Giving a positive command to a friend is surprisingly simple for most verbs.

➡️ The General Rule:
You simply use the same form as the third-person singular (él/ella/usted) of the present indicative tense.

Let's see it in action with regular verbs:
🔹 For -ar verbs: Hablar (to speak) -> ¡Habla! (Speak!)
🔹 For -er verbs: Comer (to eat) -> ¡Come! (Eat!)
🔹 For -ir verbs: Escribir (to write) -> ¡Escribe! (Write!)

Example sentences:
"¡Come toda la verdura!" (Eat all the vegetables!)
"¡Escribe el correo ahora!" (Write the email now!)

❗️ The Irregulars
Of course, Spanish has some important exceptions! There are eight common verbs with unique, short command forms that you must memorize. A popular mnemonic to remember them is: "Vin Diesel has ten weapons, eh?" which sounds like the Spanish commands.

🔸 Venir (to come) -> ¡Ven!
🔸 Decir (to say/tell) -> ¡Di!
🔸 Salir (to leave) -> ¡Sal!
🔸 Hacer (to do/make) -> ¡Haz!
🔸 Tener (to have) -> ¡Ten!
🔸 Ir (to go) -> ¡Ve!
🔸 Poner (to put) -> ¡Pon!
🔸 Ser (to be) -> ¡Sé!

Example sentences with irregulars:
"¡Haz la cama!" (Make the bed!)
"¡Pon la mesa, por favor!" (Set the table, please!)
"¡Sé amable con tu hermano!" (Be kind to your brother!)

❌ Negative 'Tú' Commands (Negative Instructions)

This is where your knowledge of the subjunctive mood becomes essential! The structure for negative commands is completely different from the affirmative ones.

➡️ The General Rule:
Use the word 'No' followed by the 'tú' form of the present subjunctive.

Remember the steps to form the present subjunctive for 'tú':

1. Start with the 'yo' form of the present indicative (e.g., hablo, tengo, conozco).
2. Drop the final '-o'.
3. Add the "opposite" vowel ending: '-es' for -ar verbs and '-as' for -er/-ir verbs.

Let's apply this rule:
🔹 Hablar (yo hablo -> habl-) -> ¡No hables! (Don't speak!)
🔹 Comer (yo como -> com-) -> ¡No comas! (Don't eat!)
🔹 Escribir (yo escribo -> escrib-) -> ¡No escribas! (Don't write!)

This rule also applies to verbs that were irregular in the affirmative command:
🔸 Hacer (yo hago -> hag-) -> ¡No hagas! (Don't do/make!)
🔸 Poner (yo pongo -> pong-) -> ¡No pongas! (Don't put!)
🔸 Salir (yo salgo -> salg-) -> ¡No salgas! (Don't leave!)

❗️ Key Irregulars in the Negative
The main irregular verbs for the negative command are the same ones that are irregular in the present subjunctive. A good way to remember them is with the acronym DISHES.

🔸 Dar -> ¡No des!
🔸 Ir -> ¡No vayas!
🔸 Ser -> ¡No seas!
🔸 Haber -> ¡No hayas! (less common in commands)
🔸 Estar -> ¡No estés!
🔸 Saber -> ¡No sepas!

Example sentences with negative commands:
"¡No vayas a esa fiesta!" (Don't go to that party!)
"¡No estés triste!" (Don't be sad!)

📌 Summary: Affirmative vs. Negative

It is crucial to remember the difference:

🔹 Affirmative (¡Hazlo!):

• Rule: Use the él/ella/usted present indicative form.
• Irregulars: Has a unique list of 8 short verbs (ven, di, sal, haz, ten, ve, pon, sé).

🔹 Negative (¡No lo hagas!):

• Rule: Use 'No' + the 'tú' form of the present subjunctive.
• Irregulars: Follow the standard present subjunctive irregulars (vayas, seas, estés, des, etc.).

Mastering this distinction is a significant step toward sounding more natural in Spanish. ¡Practica mucho!