Tú commands are the singular form of informal commands. To tell a friend, family member, classmate, child, or pet to do something, use the affirmative tú command. To tell one of those same people not to do something, use the negative tú command. This article covers the affirmative informal command (informal imperative) in all its forms.
  • Compra (tú) los libros. (Buy the books.) - affirmative
  • No camines (tú) en el césped. (Don’t walk on the grass.) - negative

Affirmative Informal Tú Command Forms

For the familiar affirmative commands, you will simply use the 3rd person singular form of the present indicative.

-AR verbs: Add the 3rd person singular ending -a to the stem

  • (Comprar) Compra la camisa. (Buy the shirt.)

-ER verbs: Add the 3rd person singular ending -e to the stem

  • (Aprender) ¡Aprende español! (Learn Spanish!)

-IR verbs: Add the 3rd person singular ending -e to the stem

  • (Escribir) ¡Escribe el ensayo! (Write the essay!)

For verbs with stem changes or spelling changes in the present tense, the stem or spelling change still applies.

  • (Cerrar) Cierra la puerta. (Close the door.)
  • (Mover) Mueve esas sillas. (Move those chairs.)
  • (Incluir) Incluye tu información aquí. (Include your information here.)

Irregular Affirmative Informal Tú Commands

All irregular 3rd person singular present indicative verbs keep that same irregularity in the affirmative informal command except the following 8 verbs which have a special irregular form in the affirmative command.

decir di salir sal
hacer haz ser
ir ve tener ten
poner pon venir ven

Pronoun Placement with Commands

Pronoun placement: the pronoun is attached to the end of affirmative commands and the verb carries a tilde to maintain its original stress.

  • Tráemelo. (Bring it to me.)
  • Díselo. (Tell it to her.)
  • Cómpraselo. (Buy it for him.)
  • Ponte los zapatos. (Put on your shoes.)

Punctuation to the Rescue!

Because the informal tú command (imperative) is the same conjugation form as the 3rd person singular, it is helpful to include exclamation points to indicate urgency or the name of the person you are commanding followed by a comma. Without the comma, your sentence is just the 3rd person singular present indicative. Compare the following sentences written with different punctuation:

   •    Compra la camisa. (She buys the shirt.) - present indicative
   •    ¡Compra la camisa! (Buy the shirt!) - informal imperative
   •    Alicia compra la camisa. (Alicia buys the shirt.) - present indicative
   •    Alicia, compra la camisa. (Alicia, buy the shirt.) - informal imperative

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