-o/-es/-e/-imos/-is/-em

Present Tense -IR Verbs

Level 1

To conjugate regular -ir verbs in the present tense, remove the -ir ending and add: -o, -es, -e, -imos, -is, -em.

How It Works

In Portuguese, verbs are categorized by their infinitive endings: -ar, -er, and -ir. Regular -ir verbs are the third group. To use them in the present tense, you take the stem (the verb minus the -ir) and attach the following endings:

  • Eu (I): -o
  • Tu (You, informal): -es
  • Ele/Ela/Você (He/She/You): -e
  • Nós (We): -imos
  • Vós (You all, formal/archaic): -is
  • Eles/Elas/Vocês (They/You all): -em

Usage Notes:
1. Regional Differences: In Brazil, a gente is often used instead of nós, and você is the standard for 'you' in most regions, using the 3rd person singular ending (-e). In Portugal, tu is common for informal 'you' (ending in -es).
2. Similarity to -er verbs: Notice that the singular forms and the 3rd person plural are identical to -er verbs. The only difference is in the nós and vós forms.
3. Stem Changes: Be aware that many common -ir verbs (like dormir or sentir) have small changes in the stem, even if the endings remain regular.

Examples (5)

  1. Eu abro a porta.

    I open the door.

    Word by Word: I open the door.

    The stem 'abr-' + the 'eu' ending '-o'.

  2. Nós partimos o bolo.

    We split the cake.

    Word by Word: We split the cake.

    The stem 'part-' + the 'nós' ending '-imos'. Note the 'i' which distinguishes it from -er verbs.

  3. Eles decidem o que fazer.

    They decide what to do.

    Word by Word: They decide the what to do.

    The stem 'decid-' + the 'eles' ending '-em'.

  4. Tu divides o lanche com ela?

    Do you share the snack with her?

    Word by Word: You divide the snack with her?

    The stem 'divid-' + the 'tu' ending '-es'.

  5. Ela admite o erro.

    She admits the mistake.

    Word by Word: She admits the error.

    The stem 'admit-' + the 3rd person ending '-e'.

Common Mistakes

  • Using the -er ending (-emos) for -ir verbs in the 'nós' form.

    Nós partemos o pão.
    Nós partimos o pão.

    Learners often confuse -er and -ir verbs. Remember: -ir verbs use -imos for 'we'.

  • Using the -ar ending (-am) for the 3rd person plural.

    Eles abram a janela.
    Eles abrem a janela.

    -ir and -er verbs use -em for 'they', while only -ar verbs use -am.

How It Connects

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-o/-es/-e/-imos/-is/-emLevel 1Present Tense -IR Verbs

Learn This First

To conjugate regular -ir verbs, you must first understand the subject pronouns they agree with and be familiar with the general concept of verb endings used in Portuguese present tense conjugation.

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Words in This Pattern

-ir-o-es-imos-is