Reflexive -si

Reflexive Verbs in -si

Level 2

Add -si or -s after the ending: moka → mokosi, mokame → mokomės, mokyti → mokytis.

How It Works

Many verbs have a reflexive partner that ends in -tis in the infinitive: prausti (to wash someone) and praustis (to wash oneself), mokyti (to teach) and mokytis (to learn, to study).

1. The present tense.

  • mokytis: mokausi, mokaisi, mokosi, mokomės, mokotės, jie mokosi
  • juoktis: juokiuosi, juokiesi, juokiasi, juokiamės, juokiatės, jie juokiasi

Look at how the ending changes before the particle:

  • I-form: -u becomes -uosi (prausiu → prausiuosi), but -au just adds -si (mokau → mokausi).
  • You-form: -i becomes -iesi (prausi → prausiesi), but -ai just adds -si (mokai → mokaisi).
  • He, she, they: add -si (mokosi, juokiasi).
  • We, you plural: -me, -te become -mės, -tės (mokomės, mokotės).

2. The past tense works the same way: mokiausi, mokeisi, mokėsi, mokėmės, mokėtės (studied), as in the -ė past.

3. What reflexive verbs mean.

  • Doing something to yourself: praustis (to wash oneself), rengtis (to get dressed).
  • A different meaning from the plain verb: mokyti means to teach, but mokytis means to learn.
  • Some verbs exist only with -si: juoktis (to laugh), šypsotis (to smile).
  • With a plural subject, some mean each other: see susitikti.

4. With ne- or a prefix, -si- moves forward. Jis nesimoko. (He does not study.) Atsikeliu (I get up). You will learn this in -si- after a prefix.

Examples (6)

  1. Aš mokausi lietuvių kalbos.

    I am learning Lithuanian.

    Word by Word: I study-myself Lithuanian language.

    Mokytis means to learn. It takes the genitive: lietuvių kalbos.

  2. Kodėl tu juokiesi?

    Why are you laughing?

    Word by Word: Why you laugh?

    Juoktis exists only as a reflexive verb. The you-form ends in -iesi.

  3. Kur jūs mokotės?

    Where do you study?

    Word by Word: Where you study?

    The you-plural ending -te becomes -tės.

  4. Rytais prausiuosi šaltu vandeniu.

    In the mornings I wash with cold water.

    Word by Word: In-mornings I-wash-myself cold water.

    The I-form prausiu becomes prausiuosi.

  5. Vakar visą dieną mokiausi.

    Yesterday I studied all day.

    Word by Word: Yesterday whole day I-studied.

    The past tense adds -si in the same way: mokiausi.

  6. Ji greitai rengiasi.

    She gets dressed quickly.

    Word by Word: She quickly dresses-herself.

Common Mistakes

  • Using the plain verb when you mean to learn.

    Aš mokau lietuvių kalbos.
    Aš mokausi lietuvių kalbos.

    The speaker wants to say I am learning. Mokau means I teach. Only the reflexive mokausi means I am learning.

  • Dropping -si from a verb that only exists as a reflexive.

    Kodėl tu juoki?
    Kodėl tu juokiesi?

    There is no plain verb juokti. Juoktis always has its reflexive ending: juokiesi.

  • Adding the full -si after the we-form.

    Mes mokomesi kartu.
    Mes mokomės kartu.

    After -me and -te, only -s is added, and the e becomes ė: mokomės, mokotės.

How It Connects

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Reflexive -siLevel 2Reflexive Verbs in -si

Learn This First

Unprefixed reflexive verbs add their marker to ordinary verb forms.

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Patterns that build on this one.

Words in This Pattern

juoktis